Weather Alert
St Clair County Weather Warning NWS WEATHER ALERT FOR THE ST CLAIR COUNTY, MI AREA - Issued: 314 PM EDT Fri Sep 4 2026 St Clair County Weather Warning

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St Clair County, MI Weather - Hour by Hour Forecast

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St Clair County, MI Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 69°F21°C, dew point 66°F19°C, humidity 88%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.98 in1015 mb.
Tonight - Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers. Lows in the lower 60s. Northeast wi.. Full Forecast
Saturday - Partly cloudy in the morning then clearing. Highs in the mid 70s. Northeast winds 5 to 15 mph... Full Forecast

St Clair County Hourly Weather

24 Hour Forecast Scroll
Fri, Sep 04
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St Clair County, MI Hourly Weather - Clear - 9:00 PM St Clair County, MI Hourly Weather - Clear - 10:00 PM St Clair County, MI Hourly Weather - Clear - 11:00 PM St Clair County, MI Hourly Weather - Clear - 12:00 AM St Clair County, MI Hourly Weather - Clear - 1:00 AM St Clair County, MI Hourly Weather - Clear - 2:00 AM St Clair County, MI Hourly Weather - Clear - 3:00 AM St Clair County, MI Hourly Weather - Clear - 4:00 AM St Clair County, MI Hourly Weather - Clear - 5:00 AM St Clair County, MI Hourly Weather - Clear - 6:00 AM St Clair County, MI Hourly Weather - Clear - 7:00 AM St Clair County, MI Hourly Weather - Clear - 8:00 AM St Clair County, MI Hourly Weather - Clear - 9:00 AM St Clair County, MI Hourly Weather - Clear - 10:00 AM St Clair County, MI Hourly Weather - Clear - 11:00 AM St Clair County, MI Hourly Weather - Clear - 12:00 PM St Clair County, MI Hourly Weather - Partly Cloudy - 1:00 PM St Clair County, MI Hourly Weather - Partly Cloudy - 2:00 PM St Clair County, MI Hourly Weather - Partly Cloudy - 3:00 PM St Clair County, MI Hourly Weather - Mostly Clear - 4:00 PM St Clair County, MI Hourly Weather - Mostly Clear - 5:00 PM St Clair County, MI Hourly Weather - Mostly Clear - 6:00 PM St Clair County, MI Hourly Weather - Clear - 7:00 PM St Clair County, MI Hourly Weather - Clear - 8:00 PM
Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Clear Clear
63°F17°C 62°F17°C 60°F16°C 59°F15°C 59°F15°C 58°F14°C 57°F14°C 56°F13°C 55°F13°C 56°F13°C 57°F14°C 58°F14°C 63°F17°C 67°F19°C 72°F22°C 73°F23°C 75°F24°C 76°F24°C 76°F24°C 75°F24°C 75°F24°C 72°F22°C 70°F21°C 67°F19°C
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0% 0% 0% 0% 0% 0% 2% 2% 2% 2% 2% 2% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
55°F13°C 55°F13°C 55°F13°C 55°F13°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C 52°F11°C 53°F12°C 54°F12°C 55°F13°C 56°F13°C 57°F14°C 58°F14°C 57°F14°C 56°F13°C 55°F13°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C 54°F12°C 54°F12°C
75% 78% 84% 87% 83% 87% 86% 90% 90% 90% 90% 90% 78% 70% 61% 57% 52% 48% 46% 48% 46% 51% 57% 63%
N N N N NNE NNE NNE N N N N N NNE NNE NE NE NE NE NE NE NE NE NE NE
7 mph 3 mph 3 mph 3 mph 2 mph 2 mph 2 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 6 mph 6 mph 6 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 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 (EDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
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Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KPHN 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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