Saint Ann, Missouri Weather Conditions

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Current Conditions

  • 81°
  • Mostly Cloudy
  • Wind: SSE 12 mph
  • Humidity: 58%
  • Visibility: 10.0 miles
  • Dew Point: 65°
  • Pressure: 30.02 in. +
  • Heat Index: 83

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Chance of Rain
Chance of Rain
Chance of a Thunderstorm
Chance of T-storms
79°
74°
73°
71°
73°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 69 °
  • Chance of T-Storms
  • Saturday
  • Thunderstorm
  • High: 77 °
  • Low: 55 °
  • T-Storms
  • Sunday
  • Overcast
  • High: 68 °
  • Low: 59 °
  • Overcast
  • Monday
  • Overcast
  • High: 77 °
  • Low: 63 °
  • Overcast
  • Tuesday
  • Mostly Cloudy
  • High: 83 °
  • Low: 66 °
  • Mostly Cloudy

Forecast for Saint Ann, Missouri

Updated: 7:00 PM CDT on January 28, 2015

  • Thursday

    Chance of late night showers. Lows overnight in the low 70s.

  • Thursday Night

    Mostly cloudy with some showers after midnight. Low around 70F. Winds SSE at 5 to 10 mph. Chance of rain 40%.

  • Friday

    Scattered thunderstorms. High 84F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Friday Night

    Variably cloudy with scattered thunderstorms. Low 69F. Winds SSW at 5 to 10 mph. Chance of rain 60%.

  • Saturday

    Thunderstorms. High 77F. Winds W at 10 to 20 mph. Chance of rain 90%.

  • Saturday Night

    A steady light rain early...then remaining cloudy with a few showers. Low near 55F. Winds N at 10 to 20 mph. Chance of rain 70%.

  • Sunday

    Overcast. High 68F. Winds NNE at 10 to 15 mph.

  • Sunday Night

    Cloudy. Low 59F. Winds NE at 10 to 15 mph.

  • Monday

    Overcast. High 77F. Winds NE at 5 to 10 mph.

  • Monday Night

    Cloudy early with partial clearing expected late. Low 63F. Winds ENE at 5 to 10 mph.

  • Tuesday

    Mostly cloudy. High 83F. Winds E at 5 to 10 mph.

  • Tuesday Night

    A few clouds from time to time. Low 66F. Winds ESE at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High 87F. Winds SE at 5 to 10 mph.

  • Wednesday Night

    Clear skies. Low 68F. Winds SSE at 5 to 10 mph.

  • Thursday

    Sunshine and some clouds. High 89F. Winds S at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low 71F. Winds SSE at 5 to 10 mph.

  • Friday

    Mostly sunny skies. High 89F. Winds S at 10 to 15 mph.

  • Friday Night

    Some clouds early will give way to generally clear conditions overnight. Low 72F. Winds SSE at 5 to 10 mph.

  • Saturday

    Partly cloudy skies during the morning hours. Thunderstorms likely in the afternoon. High 89F. Winds SSE at 5 to 10 mph. Chance of rain 80%.

  • Saturday Night

    Some clouds and possibly an isolated thunderstorm after midnight. Low 73F. Winds ESE at 5 to 10 mph. Chance of rain 30%.

  • Sunday

    Scattered thunderstorms. High 86F. SSW winds shifting to NNW at 10 to 15 mph. Chance of rain 50%.

  • Sunday Night

    Scattered thunderstorms, especially in the evening. Low 71F. Winds NE at 5 to 10 mph. Chance of rain 40%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 8:48 PM CDT

Temperature: 76.6 °F Dew Point: 68 °F Humidity: 75% Wind: SW at 2.2 mph Pressure: 29.95 in Hourly Precipitation: - Heat Index: 78 °F Graphs

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

Updated: 8:52 PM CDT

Temperature: 77.1 °F Dew Point: 68 °F Humidity: 73% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 8:47 PM CDT

Temperature: 77.6 °F Dew Point: 67 °F Humidity: 70% Wind: East at 8.0 mph Pressure: 29.36 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

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

Updated: 8:52 PM CDT

Temperature: 77.5 °F Dew Point: 66 °F Humidity: 68% Wind: ESE at 2.0 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 8:52 PM CDT

Temperature: 76.0 °F Dew Point: 65 °F Humidity: 68% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Maryland Heights, MO

Updated: 8:52 PM CDT

Temperature: 77.8 °F Dew Point: 68 °F Humidity: 71% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 8:52 PM CDT

Temperature: 75.9 °F Dew Point: 67 °F Humidity: 75% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 8:46 PM CDT

Temperature: 77.2 °F Dew Point: 67 °F Humidity: 70% Wind: North at - Pressure: 29.87 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 8:34 PM CDT

Temperature: 77 °F Dew Point: 67 °F Humidity: 72% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 8:46 PM CDT

Temperature: 77.7 °F Dew Point: 67 °F Humidity: 69% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 8:52 PM CDT

Temperature: 76.6 °F Dew Point: 64 °F Humidity: 65% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 8:52 PM CDT

Temperature: 78.0 °F Dew Point: 67 °F Humidity: 69% Wind: ESE at 2.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 8:52 PM CDT

Temperature: 76.6 °F Dew Point: 67 °F Humidity: 73% Wind: ESE at 1.7 mph Pressure: 29.48 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 8:52 PM CDT

Temperature: 77.2 °F Dew Point: 68 °F Humidity: 72% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Creve Coeur, Saint Louis, MO

Updated: 8:52 PM CDT

Temperature: 76.6 °F Dew Point: 68 °F Humidity: 73% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Ladue, St. Louis, MO

Updated: 8:50 PM CDT

Temperature: 80.6 °F Dew Point: - Humidity: 60% Wind: North at - Pressure: 29.37 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 8:50 PM CDT

Temperature: 75.2 °F Dew Point: 68 °F Humidity: 78% Wind: Calm Pressure: 29.53 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 8:50 PM CDT

Temperature: 75.9 °F Dew Point: 68 °F Humidity: 76% Wind: SW at 2.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 8:51 PM CDT

Temperature: 77.8 °F Dew Point: 68 °F Humidity: 73% Wind: East at 1.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Parkridge, Brentwood, MO

Updated: 8:51 PM CDT

Temperature: 77.5 °F Dew Point: - Humidity: - Wind: SE at 1.6 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Talbridge, St. Charles, MO

Updated: 8:51 PM CDT

Temperature: 77.0 °F Dew Point: 67 °F Humidity: 72% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 8:52 PM CDT

Temperature: 72.3 °F Dew Point: 68 °F Humidity: 88% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Jost Farm, Florissant, MO

Updated: 8:50 PM CDT

Temperature: 76.1 °F Dew Point: 58 °F Humidity: 53% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Raritan Drive, Webster Groves, MO

Updated: 8:46 PM CDT

Temperature: 77.4 °F Dew Point: 68 °F Humidity: 73% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Fawnridge Drive, Saint Louis, MO

Updated: 8:46 PM CDT

Temperature: 77.4 °F Dew Point: 67 °F Humidity: 71% Wind: North at - Pressure: 30.14 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 8:49 PM CDT

Temperature: 77.2 °F Dew Point: 66 °F Humidity: 68% Wind: SSW at 3.2 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 8:52 PM CDT

Temperature: 72.7 °F Dew Point: 68 °F Humidity: 85% Wind: Calm Pressure: 29.37 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Franz Park, St. Louis, MO

Updated: 8:45 PM CDT

Temperature: 78.4 °F Dew Point: 69 °F Humidity: 72% Wind: North at - Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Forest Park, St. Louis, MO

Updated: 8:50 PM CDT

Temperature: 81.0 °F Dew Point: - Humidity: 54% Wind: North at - Pressure: 29.42 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 8:45 PM CDT

Temperature: 77.9 °F Dew Point: 69 °F Humidity: 74% Wind: North at - Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: ACW Alliance at BJC Washington University Campus, Saint Louis, MO

Updated: 8:52 PM CDT

Temperature: 77.6 °F Dew Point: 65 °F Humidity: 65% Wind: Calm Pressure: 29.36 in Hourly Precipitation: 0.00 in Heat Index: 79 °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 
517 PM CDT Thu may 28 2015 


Short term: (through late tonight) 
issued at 337 PM CDT Thu may 28 2015 


Isolated-scattered showers and thunderstorms are expected to continue 
early this evening ahead of 500-hpa shortwave trough with the best 
coverage of storms across central Missouri. Combination of nocturnal 
stabilization and subsidence behind aforementioned shortwave 
should lead to weakening/dissipation of storms as well as a 
corresponding drop in coverage late evening/early overnight. Late 
tonight...sch/chc pops for showers/storms return to the area as 
low level jet strengthens and veers from the south-southwest to the west-southwest late tonight. As 
for temperatures...mild conditions are expected due to a partly to 
mostly cloudy sky and a light southerly breeze. Expect lows 
tonight in the mid to upper 60s areawide. 




Gosselin 


Long term: (friday through next thursday) 
issued at 337 PM CDT Thu may 28 2015 




(friday-Saturday night) 


Another shortwave trough will eject out toward the mid-Mississippi Valley 
during the day tomorrow...similar to today just a bit further to the 
northwest. Pops will be on the increase especially Friday afternoon 
for portions of Central/Northeast Missouri as well as west-central Illinois 
as synoptic cold front associated with northern stream energy slowly sags 
southeastward into region. Continued likely pops for showers and storms 
for Friday afternoon. As for chances of severe weather...appears any 
widespread strong/severe storms will be difficult due to weak deep-layer 
shear values...around 20 knots. However...isolated strong to severe storms 
with large hail/damaging winds does look plausible due to moderately 
strong instability (1000-2000 j/kg) values. 


Cold front will continue its slow southeastward progression on 
Friday night and Saturday. Highest probabilities for showers and 
thunderstorms continues to hone in on this period. Timing of cold 
front looks to clear County Warning Area by mid/late Saturday morning. Like Friday 
..deep-layer shear/instability parameters do not look supportive 
of any widespread severe weather...but a strong to severe storm is 
not out of the question. Behind the front...showers (along with 
some possible embedded thunder) look likely as shortwave trough 
slows down and upper-level jet streak backbuilds to the southwest 
putting County warning forecast area beneath the rer. 


Temperatures on Saturday look to be challenging due to frontal 
timing and associated precip chances. Leaned cool (highs in the 
upepr 60s to low 70s) for areas well behind the front in central and 
northeast Missouri and west-central Illinois where clouds are 
expected to linger along with strong low-level cold air advection from the north. 
For areas further to the south and east...did not deviate too much 
from guidance with highs in the mid 70s to near 80 degrees expected. 


Tightened pop gradient a bit on Saturday night with highest pops 
remaining across southeast Missouri and southwest Illinois in closer 
proximity to cold front. Did remove some mention of thunder well 
behind the front due to lack of instability. Surface high across 
the Great Lakes will begin flexing its muscle with much cooler and 
drier weather beginning to filter into from the north and east. 
Forecast lows are expected to dip back below seasonal norms with 
lows generally in the 50s expected. 




(Sunday-thursday) 


A cutoff low is still expected to develop somewhere near the 
bootheel of Missouri on Sunday. Confined pops to far southeastern 
sections of the area which will be closer in distance to this 
feature as well as remnant cold frontal boundary. Instability looks 
meager at best so just mentioned isolated tunder for the far 
southern and eastern counties. Lingering clouds with 850-hpa dipping 
to near +10c should yield a chilly day for very late may. Highs only 
in the mid to upper 60s are expected on Sunday. 


Cutoff low is expected to meander slowly to the south/southwest 
heading into the middle of next week. Precipitation chances look low 
as region will likely be too far north of aforementioned cutoff low 
and too far south of main corridor of cyclones transversing the 
upper Midwest. Best chance of showers/storms at the moment appears 
to be on Thursday with chance pops as GFS suggests a trough axis may 
approach the area from the west. All in all...the extended portion 
of the forecast Monday through Thursday appears to be mostly dry 
with moderating temperatures back above normal by Thursday. 




Gosselin 


&& 


Aviation: (for the 00z tafs through 00z Friday evening) 
issued at 501 PM CDT Thu may 28 2015 


Thunderstorms have fired primarily along a warm front lifting 
across the area. This is in response to a shortwave which will 
move across by 12z. Additional thunderstorm have formed across SW 
MO in the warm air in advance of the wave. This activity will 
likely impact cou this evening and potentially uin closer to 
midnight. Hrrr decreases this precipitation gradually overnight, 
but does fire up some new stuff primarily across southeast MO as the wave 
moves across eastern MO. Possible given this area has not had any 
rain so far. Activity drifts into sus and cps area about 08z. Am 
not optimistic about this so will leave out for now but will 
monitor development late this evening closely. Another wave which 
looks weaker moves in Friday and this will help kick off 
showers/thunderstorms Friday afternoon. Timing difficult so some 
thunderstorms in the vicinity will be the best forecast for now. Overall, tafs will stay 
VFR except briefly when storms move through. 


Specifics for kstl: question is whether stl will stay dry 
overnight. Hrrr kills current rain that is over SW MO but forms 
new stuff about 08z, most likely in response to the short wave 
lifting across the area. Have doubts if the atmosphere will be 
unstable enought to support this, so will leave out for now but 
will watch closely late this evening. Thunderstorms will lilely 
fire Friday afternoon in response to another, although weaker, 
wave moving through. Timing no certain so a thunderstorms in the vicinity for a couple of 
hours will suffice for now. More thunderstorms will be likely as 
the cold front moves in overnight Friday night into Saturday 
morning. 


Jpk 


&& 


Preliminary point temperatures/pops: 
Saint Louis 69 84 69 78 / 30 60 50 70 
Quincy 66 81 65 69 / 30 70 70 50 
Columbia 66 79 65 71 / 50 70 70 50 
Jefferson City 67 80 66 71 / 50 60 70 50 
Salem 68 84 69 79 / 30 40 40 70 
Farmington 66 80 68 77 / 30 50 50 60 


&& 


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


$$ 


Weather forecast office lsx 












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