Saint Clair, MO Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

31°F
Feels Like 24°F  
Humidity 41% Dew Point 10°F Wind SSW 8 MPH Gusts 8 Barometer 30.4 in.
Solar Rad 241 w/m2 UV Index 2
Report from a personal weather station 2.9 mi. SE of central Saint Clair
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Point Forecast at a Glance

MonDec 15
Mon Dec 15: Sunny, High 44F, Low 27F
44
27
TueDec 16
Tue Dec 16: Sunny, High 52F, Low 33F
52
33
WedDec 17
Wed Dec 17: Sunny, High 55F, Low 45F
55
45
ThuDec 18
Thu Dec 18: Rain, High 56F, Low 19F
50%
56
19
FriDec 19
Fri Dec 19: Mostly Sunny, High 42F, Low 33F
42
33
SatDec 20
Sat Dec 20: Mostly Sunny, High 59F, Low 33F
59
33
SunDec 21
Sun Dec 21: Partly Sunny, High 49F
49
 

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7-Day Temperature Trend

Week Ahead Summary

Significant warming trend with high temperatures climbing from 44°F to 49°F, reaching a high of 59°F. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 7°F above the historical average for December. Normal highs for this period are around 44°F with lows around 25°F.

This Date in Weather History

1987 - A major winter storm hit the Great Lakes Region, intensifying explosively as it crossed northern Illinois. High winds and heavy snow created blizzard conditions in southeastern Wisconsin. Winds gusted to 73 mph, and snowfall totals ranged up to 17 inches at LaFarge. The barometric pressure at Chicago IL dropped three quarters of an inch in six hours to 28.96 inches, a record low reading for December. Up to a foot of snow blanketed northern Illinois, and winds in the Chicago area gusted to 75 mph. O'Hare Airport in Chicago was closed for several hours, for only the fourth time in twenty years. High winds derailed train cars at Avon IN. Light winds and partly sunny skies were reported near the center of the storm, a feature typical of tropical storms.

More on this and other weather history

Saint Clair, MO 7 Day Weather Forecast Details

Monday Dec 15

Sunny

Day: Sunny, with a high near 44. Southwest wind 7 to 13 mph, with gusts as high as 29 mph.

Clear

Night: Clear, with a low around 27. Southwest wind 5 to 7 mph.

Tuesday Dec 16

Sunny

Day: Sunny, with a high near 52. Southwest wind 6 to 9 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 33. South wind around 6 mph becoming calm after midnight.

Wednesday Dec 17

Sunny

Day: Sunny, with a high near 55. Calm wind becoming south around 6 mph in the afternoon.

Rain

Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 45.

Thursday Dec 18

Rain

Day: A 50 percent chance of rain before noon. Partly sunny, with a high near 56.

Mostly Clear

Night: Mostly clear, with a low around 19.

Friday Dec 19

Mostly Sunny

Day: Mostly sunny, with a high near 42.

Partly Cloudy

Night: Partly cloudy, with a low around 33.

Saturday Dec 20

Mostly Sunny

Day: Mostly sunny, with a high near 59.

Mostly Cloudy

Night: Mostly cloudy, with a low around 33.

Sunday Dec 21

Partly Sunny

Day: Partly sunny, with a high near 49.


About Saint Clair, MO

St. Clair is a city in Franklin County, Missouri, United States. The population was 4,791 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.