Crystal City, Missouri Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 38°
  • Overcast
  • Wind: North 18 mph
  • Humidity: 89%
  • Visibility: 8.0 miles
  • Dew Point: 35°
  • Pressure: 29.84 in. +
  • Heat Index: 28

Select a Section

Click a section below for more information.

Next 12 Hours

6  pm
9  pm
12  am
3  am
6  am
Rain
Rain
Chance of Snow
Chance of Snow
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
41°
36°
34°
28°
28°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Rain
  • High: 50 °
  • Low: 25 °
  • Rain
  • Monday
  • Partly Cloudy
  • High: 48 °
  • Low: 32 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 48 °
  • Low: 28 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 52 °
  • Low: 39 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 46 °
  • Low: 30 °
  • Partly Cloudy

Forecast for Crystal City, Missouri

Updated: 3:00 PM CST on January 25, 2015

  • Sunday

    Overcast with rain. High of 50F. Winds from the SW at 5 to 15 mph shifting to the NW in the afternoon. Chance of rain 90%.

  • Sunday Night

    Overcast with a chance of snow in the evening, then mostly cloudy. Low of 25F with a windchill as low as 19F. Breezy. Winds from the NNW at 10 to 25 mph with gusts to 30 mph. Chance of snow 50%.

  • Monday

    Partly cloudy. High of 48F. Winds from the NW at 5 to 10 mph shifting to the SW in the afternoon.

  • Monday Night

    Partly cloudy in the evening, then clear. Low of 32F with a windchill as low as 25F. Winds from the WSW at 5 to 10 mph shifting to the NW after midnight.

  • Tuesday

    Partly cloudy in the morning, then overcast. High of 48F. Winds from the NNW at 10 to 15 mph.

  • Tuesday Night

    Partly cloudy in the evening, then clear. Low of 28F. Winds from the NNE at 5 to 10 mph shifting to the ESE after midnight.

  • Wednesday

    Partly cloudy. High of 52F. Breezy. Winds from the SSE at 10 to 20 mph.

  • Wednesday Night

    Partly cloudy. Low of 39F. Breezy. Winds from the South at 15 to 20 mph.

  • Thursday

    Mostly cloudy. High of 46F. Breezy. Winds from the NW at 20 to 25 mph.

  • Thursday Night

    Partly cloudy. Low of 30F. Breezy. Winds from the NNW at 10 to 20 mph.

  • Friday

    Clear. High of 45F. Winds from the NNE at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 28F. Winds from the ENE at 5 to 10 mph shifting to the SE after midnight.

  • Saturday

    Clear. High of 55F. Winds from the South at 5 to 10 mph shifting to the West in the afternoon.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 18F. Winds from the West at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 50F. Winds from the WSW at 5 to 15 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 18F with a windchill as low as 7F. Breezy. Winds from the SSW at 10 to 20 mph.

  • Monday

    Clear. Fog early. High of 28F. Winds from the WNW at 5 to 20 mph.

  • Monday Night

    Clear. Fog overnight. Low of 18F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 32F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Fog overnight. Low of 19F. Winds less than 5 mph.

  • Wednesday

    Clear. Fog early. High of 34F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Fog overnight. Low of 21F. Winds less than 5 mph.

  • Thursday

    Clear. Fog early. High of 45F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 21F. Winds from the SSE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Herculaneum, Mott Street, Herculaneum, MO

Updated: 5:50 PM CST

Temperature: 42.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.30 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: On The Bluffs, Waterloo, IL

Updated: 6:15 PM CST

Temperature: 36.5 °F Dew Point: 35 °F Humidity: 94% Wind: North at 5.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Imperial - Wellington Subdivision, Imperial, MO

Updated: 6:16 PM CST

Temperature: 38.4 °F Dew Point: 36 °F Humidity: 92% Wind: NE at 9.2 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: APRSWXNET Imperial MO US, Imperial, MO

Updated: 5:34 PM CST

Temperature: 39 °F Dew Point: 37 °F Humidity: 92% Wind: NNW at 3 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Hillsboro, Missouri, Hillsboro, MO

Updated: 6:15 PM CST

Temperature: 36.5 °F Dew Point: 35 °F Humidity: 94% Wind: NNW at 3.7 mph Pressure: 29.75 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: summerfield, Imperial, MO

Updated: 6:15 PM CST

Temperature: 37.2 °F Dew Point: 28 °F Humidity: 69% Wind: Calm Pressure: 29.61 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Ste Genevieve county, Festus, MO

Updated: 6:11 PM CST

Temperature: 37.2 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 6:15 PM CST

Temperature: 37.4 °F Dew Point: 35 °F Humidity: 90% Wind: NW at 15.7 mph Pressure: 29.21 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Guardian Court, Arnold, MO

Updated: 6:16 PM CST

Temperature: 38.1 °F Dew Point: 34 °F Humidity: 84% Wind: North at - Pressure: 29.81 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Hardy Acres / AA9UC, Waterloo, IL

Updated: 6:15 PM CST

Temperature: 36.3 °F Dew Point: 36 °F Humidity: 97% Wind: NNW at 6.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Arnold # 1, Arnold, MO

Updated: 6:08 PM CST

Temperature: 36.5 °F Dew Point: 36 °F Humidity: 97% Wind: NNE at 6.3 mph Pressure: 29.52 in Hourly Precipitation: - Windchill: 31 °F Graphs

Location: Wynfield Terrace, St. Louis, MO

Updated: 6:16 PM CST

Temperature: 36.5 °F Dew Point: 35 °F Humidity: 94% Wind: NNW at 3.1 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Arnold, Arnold, MO

Updated: 6:16 PM CST

Temperature: 36.4 °F Dew Point: 34 °F Humidity: 91% Wind: NNW at 16.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: APRSWXNET Arnold MO US, Arnold, MO

Updated: 5:31 PM CST

Temperature: 36 °F Dew Point: 35 °F Humidity: 96% Wind: NNE at 4 mph Pressure: 29.78 in Hourly Precipitation: 0.01 in Windchill: 33 °F Graphs

Location: Arnold, MO

Updated: 6:01 PM CST

Temperature: 36.4 °F Dew Point: 35 °F Humidity: 96% Wind: NW at 4.0 mph Pressure: 29.82 in Hourly Precipitation: 0.01 in Windchill: 33 °F Graphs

Location: APRSWXNET Cedar Hill MO US, Cedar Hill, MO

Updated: 5:32 PM CST

Temperature: 37 °F Dew Point: 35 °F Humidity: 94% Wind: North at 3 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: ARNOLD, Arnold, MO

Updated: 5:50 PM CST

Temperature: 38.7 °F Dew Point: - Humidity: 87% Wind: North at - Pressure: 29.03 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 6:16 PM CST

Temperature: 37.2 °F Dew Point: 36 °F Humidity: 94% Wind: NW at 3.1 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Christopher Winds, Oakville, MO

Updated: 6:16 PM CST

Temperature: 36.8 °F Dew Point: 35 °F Humidity: 93% Wind: North at 6.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 6:16 PM CST

Temperature: 34.5 °F Dew Point: 33 °F Humidity: 95% Wind: NNE at 6.0 mph Pressure: 29.77 in Hourly Precipitation: 0.01 in Windchill: 29 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 6:15 PM CST

Temperature: 36.4 °F Dew Point: 35 °F Humidity: 94% Wind: NNW at 5.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Devall's Backyard, Waterloo, IL

Updated: 6:02 PM CST

Temperature: 39.2 °F Dew Point: 37 °F Humidity: 91% Wind: North at 4.3 mph Pressure: 29.81 in Hourly Precipitation: - Windchill: 36 °F Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 6:15 PM CST

Temperature: 36.6 °F Dew Point: 35 °F Humidity: 93% Wind: NNW at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 6:15 PM CST

Temperature: 36.4 °F Dew Point: 35 °F Humidity: 93% Wind: NNW at 4.0 mph Pressure: 29.89 in Hourly Precipitation: 0.01 in Windchill: 33 °F Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 6:16 PM CST

Temperature: 36.1 °F Dew Point: 34 °F Humidity: 91% Wind: North at 10.7 mph Pressure: 29.92 in Hourly Precipitation: 0.01 in Windchill: 29 °F Graphs

Location: Cathedral Drive, Saint Louis, MO

Updated: 6:11 PM CST

Temperature: 38.3 °F Dew Point: 36 °F Humidity: 91% Wind: North at - Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 6:12 PM CST

Temperature: 37.8 °F Dew Point: 36 °F Humidity: 92% Wind: NNW at 4.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Gerry's Pool, Prairie Du Rocher, IL

Updated: 6:16 PM CST

Temperature: 38.8 °F Dew Point: 36 °F Humidity: 88% Wind: South at 5.4 mph Pressure: 29.44 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: High Ridge Fire District House #1, High Ridge, MO

Updated: 6:05 PM CST

Temperature: 37.7 °F Dew Point: 36 °F Humidity: 92% Wind: NW at 6.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: MesoWest KIDD1 IL US UPR, Prairie Du Rocher, IL

Updated: 5:05 PM CST

Temperature: 41 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Jefferson Barracks, Mehlville, MO

Updated: 6:16 PM CST

Temperature: 36.5 °F Dew Point: 34 °F Humidity: 92% Wind: NE at 9.3 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Deerpath Acres Court, Saint Louis, MO

Updated: 6:11 PM CST

Temperature: 36.7 °F Dew Point: 35 °F Humidity: 92% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: San Luis Trails, Fenton, MO

Updated: 6:16 PM CST

Temperature: 35.8 °F Dew Point: 33 °F Humidity: 91% Wind: NNW at 3.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: BUCKLEY MEADOWS 4, Saint Louis, MO

Updated: 6:05 PM CST

Temperature: 36.7 °F Dew Point: 36 °F Humidity: 96% Wind: NNW at 4.7 mph Pressure: 29.75 in Hourly Precipitation: - Windchill: 33 °F Graphs

Location: St. Joseph Hill, Pacific, MO

Updated: 6:06 PM CST

Temperature: 37.5 °F Dew Point: 35 °F Humidity: 91% Wind: North at 5.0 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated aviation 
National Weather Service St Louis MO 
548 PM CST sun Jan 25 2015 


Short term: (through late tonight) 
issued at 323 PM CST sun Jan 25 2015 


Precip over the County Warning Area should be winding down over the next few hours 
as upper level impulse works its way southeast into the Ohio Valley. 
Deformation zone that was so well defined this morning over Iowa and 
N Illinois certainly falling apart as the afternoon progresses, and have 
used a combination of regional radar and hrrr for pop/weather 
trends heading into the early evening. It would appear that the northwest 
edge of the precip (now all snow) will be near a kcou-kilx line 
by 00z, with the precip dropping southeast and exiting 
southeast sections of the County Warning Area no later than 06z. Surface obs trends this 
afternoon indicate that rain begins mixing with snow @ 36-37 and 
is all snow at 34 or colder, and will use this for ptypes for the 
rest of the afternoon and into the early evening. Given warm 
ground and the light intensity of the precip once it GOES to all 
snow, accumulations should continue to be very minor. 


Other question for tonight is how much clearing will occur as the 
storm exits and a narrow ridge of high pressure works into the 
region. Over the last few hours have seen a wedge of clearing 
wrapping around the surface low from S WI into NE Iowa. Some of this 
clearing may reach our area, but there is also a lot of additional 
low cloud to our north that will advect our way as well, so for 
now have only gone with partial clearing during the late evening 
and overnight hours. 


Truett 


Long term: (monday through next sunday) 
issued at 323 PM CST sun Jan 25 2015 


(monday-wednesday) 


Overall, going forecast heading into midweek still looks pretty 
good, so this package will include generally minor adjustments and 
tweaks to these trends. 


Fast moving shortwave in northwest flow will zip into the region on 
Monday, with warm air advection in advance of this feature rapidly shutting down 
the cold air advection occuring overnight in the wake of today's clipper. 12z 
synoptic runs are suggesting a fairly strong north-S warm front will be 
located near or just west of stl by late Monday afternoon and have 
attempted to reflect this in Max temp forecast, allowing highs to 
rebound into the middle 50s over mid MO while keeping highs in the 
30s over our S Illinois counties. This temp trend also seems to be 
supported by the model relative humidity progs which suggest a fairly thick mid 
deck sweeping from west to east across the area in the zone of warm air advection during 
the day, with the most clouds over our eastern counties during the 
afternoon. Some 12z guidance is even trying to kick out some 
light quantitative precipitation forecast near and east of the Mississippi River in the zone of 
strongest warm air advection. Have continued dry forecast for now, but will need 
to keep an eye on this as there has been some very subtle suggestions 
of this for several days. 


The cold air advection behind monday's shortwave will try to dip 
into the area Monday night, but with the longwave trof working into 
the East Coast during this time the main thrust of this cooler air 
will be east of our area. Model consensus of thermal profiles over 
the region support highs in the 40s over most of the County Warning Area by Tuesday 
as weak surface ridge drops into the Mississippi Valley. 


Warmup still appears to be on schedule for Wednesday, and main 
question is how much of the warming will be able to translate to the 
surface. Forecast soundings are suggesting a large inversion, with 
low level mixing up to 900-950mb. Surface/low level winds...while 
strong...are going to primarily be southerly rather than the 
southwest direction that normally gives US our biggest warmups. 
Also some doubt to how much cloud cover there will be, as GFS 
suggests some mid clouds working into the area during the afternoon 
while NAM suggests lots of sunshine. Due to the above uncertainty 
will keep highs about where they are now...ranging from the mid 40s 
in our far eastern counties to near 60 in the far western tip of our 
County Warning Area. 


(Thursday-sunday) 


Shortwave that works across the region Wednesday night and early 
Thursday appears to be the first of several chunks of energy that 
will be deepening long wave trof over the eastern U.S. Heading into 
the weekend, while cutoff low forms over the southwestern U.S. 
Medium range solutions are in very broad agreement in developing 
this split flow pattern, and in general this should mean temps 
trending back towards more wintry levels after the mid-week warmup. 
Will continue some slight chance pops on Wednesday night/Thursday 
for eastern parts of the forecast area in advance of aforementioned shortwave, 
with slight chance pops also continuing for parts of the forecast area on 
Saturday and Saturday night as there is agreement in the medium 
range models that warm air advection, a bit of shortwave energy, and a frontal 
boundary will be passing through the area at that time. 


Guidance is in reasonable agreement with their thermal profiles 
through Saturday, but much like yesterday the operational European model (ecmwf) 
continues to be deepest with the upper trof and much colder than the 
GFS by the end of the period (it's intesting to note that last 
nights European model (ecmwf)-based MOS had over a 40 degree difference between the 
warm and cold members for sunday's highs (58 vs 16). For now, will 
lean towards MOS averages for temp trends on Sunday...which will be 
in the 30s. This seems to be a reasonable compromise at this point, 
with additional adjustments occurring as specific trends become less 
muddled. 


Truett 
&& 


Aviation: (for the 00z tafs through 00z Monday evening) 
issued at 547 PM CST sun Jan 25 2015 


Surface low to continue tracking east away from forecast area this 
evening. Light rain/snow to taper off by 02z Monday. Otherwise, 
dealing with MVFR cigs through mid morning on Monday before 
lifting/scattering out to VFR. As for winds, to remain gusty 
through early this evening from the north, then diminish. Winds 
then to back to the southwest by mid morning on Monday ahead of 
next cold front. Cold front will be a dry passage with some SC and 
mid clouds associated with it. It will move through KUIN by 20z 
Monday, kcou by 21z Monday and the Metro area by 01z Tuesday with 
winds veering to the west to northwest. 


Specifics for kstl: 
surface low to continue tracking east away from forecast area this 
evening. Light rain/snow to taper off by 01z Monday. Otherwise, 
dealing with MVFR cigs through 17z Monday before lifting/scattering 
out to VFR. As for winds, to remain gusty through early this 
evening from the north, then diminish by 08z Monday. Winds then to back 
to the southwest by 17z Monday ahead of next cold front. Cold 
front will be a dry passage with some SC and mid clouds associated 
with it. It will move through Metro area by 01z Tuesday with winds 
veering to the northwest. 


Byrd 
&& 


Lsx watches/warnings/advisories: 
MO...none. 
Illinois...none. 
&& 


$$ 
Weather forecast office lsx 








National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.