Hazelwood, Missouri Weather Conditions

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Current Conditions

  • 45°
  • Overcast
  • Wind: SW 5 mph
  • Humidity: 42%
  • Visibility: 10.0 miles
  • Dew Point: 23°
  • Pressure: 30.30 in. -
  • Heat Index: 43

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Next 12 Hours

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Rain
  • High: 45 °
  • Low: 34 °
  • Rain
  • Sunday
  • Snow
  • High: 41 °
  • Low: 14 °
  • Snow
  • Monday
  • Partly Cloudy
  • High: 27 °
  • Low: 21 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 45 °
  • Low: 28 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 37 °
  • Low: 16 °
  • Partly Cloudy

Forecast for Hazelwood, Missouri

Updated: 9:00 AM CST on January 31, 2015

  • Saturday

    Overcast with a chance of rain in the afternoon. High of 43F. Winds from the South at 5 to 10 mph. Chance of rain 70%.

  • Saturday Night

    Overcast with rain. Low of 34F. Winds from the SE at 5 to 10 mph. Chance of rain 90% with rainfall amounts near 0.4 in. possible.

  • Sunday

    Overcast with snow and rain, then rain in the afternoon. High of 41F. Winds from the SW at 5 to 15 mph. Chance of precipitation 90% .

  • Sunday Night

    Overcast with a chance of snow in the evening, then mostly cloudy with a chance of snow. Low of 14F. Breezy. Winds from the NNW at 15 to 25 mph. Chance of snow 30%.

  • Monday

    Partly cloudy. High of 27F. Winds from the NNW at 5 to 15 mph.

  • Monday Night

    Overcast. Low of 21F with a windchill as low as 12F. Winds from the SE at 5 to 15 mph.

  • Tuesday

    Partly cloudy in the morning, then overcast. High of 45F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Tuesday Night

    Overcast in the evening, then partly cloudy. Low of 28F. Breezy. Winds from the SW at 10 to 20 mph.

  • Wednesday

    Overcast. Fog early. High of 37F with a windchill as low as 21F. Winds from the West at 5 to 15 mph shifting to the North in the afternoon.

  • Wednesday Night

    Partly cloudy with a chance of snow. Low of 16F. Breezy. Winds from the NNE at 15 to 25 mph. Chance of snow 40%.

  • Thursday

    Clear. High of 30F with a windchill as low as 1F. Breezy. Winds from the NNE at 10 to 20 mph.

  • Thursday Night

    Clear. Low of 16F with a windchill as low as 9F. Winds from the NE at 5 to 15 mph.

  • Friday

    Clear. High of 32F with a windchill as low as 14F. Winds from the East at 5 to 10 mph shifting to the SSE in the afternoon.

  • Friday Night

    Clear. Low of 23F with a windchill as low as 12F. Winds from the South at 10 to 15 mph.

  • Saturday

    Clear. High of 54F. Winds from the SSW at 10 to 15 mph.

  • Saturday Night

    Clear. Low of 36F. Winds from the SW at 5 to 10 mph.

  • Sunday

    Clear. High of 54F. Winds from the West at 5 to 10 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 32F. Winds less than 5 mph.

  • Monday

    Clear. Fog early. High of 52F. Winds less than 5 mph.

  • Monday Night

    Clear. Fog overnight. Low of 34F. Winds less than 5 mph.

  • Tuesday

    Clear. Fog early. High of 52F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Fog overnight. Low of 34F with a windchill as low as 23F. Winds from the NW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Riverwood Place, Florissant, MO

Updated: 1:07 PM CST

Temperature: 43.8 °F Dew Point: 28 °F Humidity: 53% Wind: NNE at 2.0 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: 1 Mile South of St. Louis Lambert Airport, Woodson Terrace, MO

Updated: 1:07 PM CST

Temperature: 43.2 °F Dew Point: 29 °F Humidity: 57% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: St. Ann, MO, St. Ann, MO

Updated: 1:03 PM CST

Temperature: 44.6 °F Dew Point: 28 °F Humidity: 52% Wind: Calm Pressure: 30.16 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: APRSWXNET Maryland Heights MO US, Maryland Heights, MO

Updated: 12:33 PM CST

Temperature: 43 °F Dew Point: 28 °F Humidity: 55% Wind: Calm Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 1:04 PM CST

Temperature: 43.6 °F Dew Point: 26 °F Humidity: 51% Wind: SSE at 4.0 mph Pressure: 29.61 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Riverside at Albers Pointe, Florissant, MO

Updated: 1:04 PM CST

Temperature: 45.5 °F Dew Point: 27 °F Humidity: 51% Wind: North at - Pressure: 30.23 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 1:07 PM CST

Temperature: 43.0 °F Dew Point: 27 °F Humidity: 52% Wind: North at 2.2 mph Pressure: 29.67 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: APRSWXNET Olivette MO US, Saint Louis, MO

Updated: 12:32 PM CST

Temperature: 43 °F Dew Point: 28 °F Humidity: 56% Wind: Calm Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 1:06 PM CST

Temperature: 42.3 °F Dew Point: 28 °F Humidity: 56% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: City of Olivette - Public Works, Olivette, MO

Updated: 1:07 PM CST

Temperature: 44.2 °F Dew Point: 27 °F Humidity: 50% Wind: SSW at 2.0 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 1:07 PM CST

Temperature: 44.3 °F Dew Point: 29 °F Humidity: 54% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 1:07 PM CST

Temperature: 44.4 °F Dew Point: 27 °F Humidity: 51% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 1:07 PM CST

Temperature: 42.6 °F Dew Point: 28 °F Humidity: 56% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 1:07 PM CST

Temperature: 44.8 °F Dew Point: 28 °F Humidity: 52% Wind: South at 1.7 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: APRSWXNET St. Louis MO US, Saint Louis, MO

Updated: 12:33 PM CST

Temperature: 42 °F Dew Point: 27 °F Humidity: 54% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 1:05 PM CST

Temperature: 43.9 °F Dew Point: 29 °F Humidity: 55% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 1:07 PM CST

Temperature: 42.6 °F Dew Point: 26 °F Humidity: 52% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Morehouse Lane, University City, MO

Updated: 1:06 PM CST

Temperature: 45.7 °F Dew Point: 29 °F Humidity: 52% Wind: North at - Pressure: 30.34 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 1:03 PM CST

Temperature: 43.2 °F Dew Point: 28 °F Humidity: 54% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 1:06 PM CST

Temperature: 41.0 °F Dew Point: 28 °F Humidity: 60% Wind: North at - Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 1:07 PM CST

Temperature: 44.0 °F Dew Point: 27 °F Humidity: 51% Wind: SE at 3.0 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: APRSWXNET Creve Coeur MO US, Saint Louis, MO

Updated: 12:30 PM CST

Temperature: 44 °F Dew Point: 28 °F Humidity: 52% Wind: SSE at 1 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: APRSWXNET Ladue MO US, Saint Louis, MO

Updated: 12:20 PM CST

Temperature: 42 °F Dew Point: 27 °F Humidity: 55% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Ladue, St. Louis, MO

Updated: 12:50 PM CST

Temperature: 43.0 °F Dew Point: - Humidity: 47% Wind: North at - Pressure: 29.65 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 1:06 PM CST

Temperature: 42.3 °F Dew Point: 28 °F Humidity: 56% Wind: SSW at 2.0 mph Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 1:07 PM CST

Temperature: 43.0 °F Dew Point: 24 °F Humidity: 47% Wind: WSW at 2.3 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 1:01 PM CST

Temperature: 41.8 °F Dew Point: 12 °F Humidity: 29% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 42 °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 
1155 am CST Sat Jan 31 2015 


Update: 
issued at 933 am CST Sat Jan 31 2015 


Brief update to delay onset/lower pops across the srn and ern 
portions of the County Warning Area. Rain continues to move newd into the region. 
Expect rain shield to remain along the wrn County Warning Area border over the next 
couple of hours, but precip will gradually move ewd/newd impacting 
central and nern portions of MO into west central Illinois. A very brief 
period of ice pellets may be possible at the onset of precip. However, as 
the onset of precip is delayed, the chances of this occurring are 
reduced. Regardless, any ice pellets shud be very brief and not pose an 
impact. 


&& 


Short term: (through late this afternoon) 
issued at 327 am CST Sat Jan 31 2015 


Mid and high clouds to remain over region ahead of main weather 
system. In the meantime, low level moisture and warm air advection 
are on the increase on nose of low level jet. So rain will continue 
to develop and spread eastward through much of our forecast area 
today, especially north and west of St. Louis Metro area. It will 
mainly be in the form of rain but could see a brief period of snow 
mixed in across central and northeast Missouri this morning. As for 
high temperatures, they will be in the upper 30s to mid 40s. 


Byrd 


Long term: (tonight through friday) 
issued at 327 am CST Sat Jan 31 2015 


(tonight-monday) 


Obviously, main concern is ptypes and potential snowfall amounts 
with storm system pushing into the region. 00z runs have continued 
warming trend of low level temp profile in advance of the storm, and 
given that this has been the trend for 4 straight model cycles 
forecast has been adjusted "warmer" as well. This adjustment will 
manifest itself in a slower transition to all snow, and reduced 
snowfall amounts over the central third of the County Warning Area...along the I-70 
corridor. 


Certainly, best area for accumulations in our County Warning Area will be our far 
northern counties, and the key to the forecast is how soon the 
precip transitions from rain to snow. NAM forecast sounding for uin 
indicates some low level cooling that would cause the switch to 
occur as early as 03z, while GFS is warmer/slower with cooling. 
It's also interesting, and perhaps a bit worrisome from a heavy 
snowfall viewpoint, that both the NAM and GFS are nearly isothermal 
at 0c at 12z up to 900mb, and a slight wiggle either warmer or 
colder will have a dramatic impact on when the changeover occurs and 
ultimately how much snowfall. 


Based on this uncertainty have tried to be a bit conservative with 
snowfall forecasts across the north, but working the numbers in 
various ways still yields snowfall totals of around or just above 6 
inches along and north of an Edina-Mount Sterling line, with 
snowfall totals dropping off quickly as you head south...to no more 
than an inch along a Mexico-Vandalia Illinois line. Based on these 
forecast amounts, will go with a Winter Storm Warning for our far 
northern counties for tonight into Sunday evening, with roughly a 2 
County "buffer" of a Winter Weather Advisory for lesser snowfalls of 
2-4 inches for the same time period. Along and south of 
I-70...snowfall totals should be under an inch. These snowfall 
totals include any snowfall from tonight, through Sunday, and into 
early Sunday evening. 


This is our best estimate of expected snowfall with this storm, and 
its important to point out that all indications are that there will 
be an extremely tight snowfall gradient from extreme southeast 
Iowa into northern MO and west central IL, with snowfall totals 
varying greatly over a very short distance. We've attempted to 
reflect this gradient in the forecast, but in all likelihood the 
distance between several inches of snow and just a dusting will be 
much tighter than indicated. Any slight change in the expected 
gradient will have a very large impact on snowfall totals at any 
given location in the warning and advisory areas. 


Winds are forecast to increase fairly dramatically in the wake of 
the surface low Sunday afternoon and evening over northern parts 
of the County Warning Area. Given that much of the snowfall will be quite wet 
don't believe that blowing snow will be much of an issue, but will 
be watching out for this threat as some of the accumulating snow 
towards the end of the event becomes much drier. 


The light snow that lingers into Sunday evening should end no later 
than midnight, followed by a cold Canadian high that will drop lows 
into the single digits and teens by Monday morning. 00z guidance 
supports going forecast trends that temps will remain below normal 
on Monday as the high pushes into the mid-Mississippi Valley, and 
this will be followed by a fairly strong...but brief...warmup on 
Tuesday with highs rebounding into the upper 30s and 40s. 


(Wednesday-friday) 


Shortwave rotating through base of broad trof over the Continental U.S. Will 
usher in another shot of cold air for the last half of the work 
week. By Thursday, highs will only be in the 20s to lower 30s, with 
only a modest rebound in temps by Friday. Have continued some 
slight chance pops with passage of shortwave on Wednesday, with 
low pops continuing over southern sections of the County Warning Area into 
Thursday as GFS suggests this area could be on northern fringes 
of system working its way from the Southern Plains into the southeast 
U.S. 


Truett 


&& 


Aviation: (for the 18z tafs through 18z Sunday afternoon) 
issued at 1140 am CST Sat Jan 31 2015 


A large rain shield currently stretching from western MO into the 
plains was moving east-northeast at midday. The rain will continue 
this motion and spread into KUIN and kcou where flight conditions 
will gradually lower during the afternoon to MVFR and to IFR during 
the evening. Further east in the St. Louis Metro area, the 
precipitation will be encountering antecedant dry air which will 
delay the onset of steadier rain until almost midnight, when 
flight conditions will also then lower. At this point the only 
location which will see snow during the valid taf period is KUIN 
when there should be a changeover sometime in the 04-07z time 
frame and there will be accumulations at the terminal. 


Specifics for kstl: 


VFR flight conditions are expected to persist this afternoon and 
evening with some short periods of light rain/sprinkles. Steadier rain 
should not commence until close to or after midnight/06z Sat. When 
flight conditions will then lower steadily to MVFR, with IFR 
anticipated between 10-12z. A changeover to snow will occur late 
in the taf period, after 21z when the surface low and cold front 
pass through. 


Glass 


&& 


Lsx watches/warnings/advisories: 
MO...Winter Weather Advisory from 9 PM this evening to 9 PM CST 
Sunday for Marion MO-Monroe MO-Pike MO-Ralls MO-Shelby MO. 


Winter Storm Warning from 9 PM this evening to 9 PM CST Sunday 
for Knox MO-Lewis MO. 


Illinois...Winter Weather Advisory from 9 PM this evening to 9 PM CST 
Sunday for Pike Illinois. 


Winter Storm Warning from 9 PM this evening to 9 PM CST Sunday 
for Adams Illinois-Brown Illinois. 


&& 


$$ 


Weather forecast office lsx 












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