Weather Alert
St Clair County Weather Warning NWS WEATHER ALERT FOR THE ST CLAIR COUNTY, MO AREA - Issued: 147 PM CDT Tue Sep 8 2026 St Clair County Weather Warning

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St Clair County, MO Weather - Hour by Hour Forecast

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St Clair County, MO Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 92°F33°C, dew point 64°F18°C, humidity 39%. Wind direction is SSE at 8 mph13 km/h with visibility of 10 mi16 km. Barometric pressure is 30.02 in1017 mb.
Overnight - Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph... Full Forecast
Wednesday - Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs around 100. Southwest winds 5 to 10 mph with .. Full Forecast

St Clair County Hourly Weather

24 Hour Forecast Scroll
Tue, Sep 08
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St Clair County, MO Hourly Weather - Partly Cloudy - 8:00 PM St Clair County, MO Hourly Weather - Cloudy - 9:00 PM St Clair County, MO Hourly Weather - Cloudy - 10:00 PM St Clair County, MO Hourly Weather - Cloudy - 11:00 PM St Clair County, MO Hourly Weather - Cloudy - 12:00 AM St Clair County, MO Hourly Weather - Cloudy - 1:00 AM St Clair County, MO Hourly Weather - Cloudy - 2:00 AM St Clair County, MO Hourly Weather - Cloudy - 3:00 AM St Clair County, MO Hourly Weather - Cloudy - 4:00 AM St Clair County, MO Hourly Weather - Cloudy - 5:00 AM St Clair County, MO Hourly Weather - Cloudy - 6:00 AM St Clair County, MO Hourly Weather - Cloudy - 7:00 AM St Clair County, MO Hourly Weather - Cloudy - 8:00 AM St Clair County, MO Hourly Weather - Cloudy - 9:00 AM St Clair County, MO Hourly Weather - Cloudy - 10:00 AM St Clair County, MO Hourly Weather - Cloudy - 11:00 AM St Clair County, MO Hourly Weather - Cloudy - 12:00 PM St Clair County, MO Hourly Weather - Cloudy - 1:00 PM St Clair County, MO Hourly Weather - Cloudy - 2:00 PM St Clair County, MO Hourly Weather - Mostly Cloudy - 3:00 PM St Clair County, MO Hourly Weather - Mostly Cloudy - 4:00 PM St Clair County, MO Hourly Weather - Mostly Cloudy - 5:00 PM St Clair County, MO Hourly Weather - Mostly Cloudy - 6:00 PM St Clair County, MO Hourly Weather - Mostly Cloudy - 7:00 PM
Partly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
86°F30°C 84°F29°C 81°F27°C 80°F27°C 79°F26°C 78°F26°C 77°F25°C 77°F25°C 76°F24°C 76°F24°C 75°F24°C 75°F24°C 76°F24°C 76°F24°C 77°F25°C 78°F26°C 80°F27°C 81°F27°C 81°F27°C 82°F28°C 82°F28°C 81°F27°C 79°F26°C 78°F26°C
- - - - - - Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - - - -
11% 11% 11% 11% 11% 11% 28% 28% 28% 28% 28% 28% 45% 45% 45% 45% 45% 45% 12% 12% 12% 12% 12% 12%
67°F19°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 67°F19°C 67°F19°C
53% 59% 65% 67% 69% 71% 74% 74% 76% 76% 79% 79% 76% 79% 76% 74% 72% 69% 67% 65% 63% 65% 67% 69%
SE E NE ENE E ESE SE SE SSE S S SW SSW W NW NW NNW NNW N N N SSW SE N
10 mph 8 mph 8 mph 8 mph 7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 4 mph 4 mph 4 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 5 mph 5 mph 5 mph 5 mph 5 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KSGF model statistics.

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Prob Precip % = Probability of Precipitation.

St Clair County 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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