Weather Alert
St. Clair Lake Weather Warning NWS WEATHER ALERT FOR THE SAINT CLAIR LAKE, WI AREA - Issued: 1246 PM CDT Tue Aug 25 2026 St. Clair Lake Weather Warning

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St. Clair Lake, WI Weather Forecast

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St. Clair Lake, WI Weather Forecast

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St. Clair Lake WI weather - Overcast - 69°F
Overcast
69°F
Updated 12:58 am
Feels Like 60°F
Humidity 92%
Wind N 0 mph
Barometer  29.88 in
Dew Point 66°F
St. Clair Lake WI weather - Overcast - 20°C
Overcast
20°C
Updated 12:58 am
Feels Like 16°C
Humidity 92%
Wind N 0 km/h
Barometer  101.1 kPa
Dew Point 19°C
WX Settings

St. Clair Lake Weather Forecast

REST OF TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
St. Clair Lake, WI Weather - Rest Of Tonight Chance Of T-Storm St. Clair Lake, WI Weather - Wednesday Chance Of Showers St. Clair Lake, WI Weather - Wednesday Night Clearing St. Clair Lake, WI Weather - Thursday Mostly Sunny St. Clair Lake, WI Weather - Thursday Night Mostly Clear St. Clair Lake, WI Weather - Friday Mostly Sunny St. Clair Lake, WI Weather - Friday Night Partly Cloudy St. Clair Lake, WI Weather - Saturday Mostly Cloudy St. Clair Lake, WI Weather - Saturday Night Chance Of Showers St. Clair Lake, WI Weather - Sunday Partly Sunny St. Clair Lake, WI Weather - Sunday Night Chance Of Showers St. Clair Lake, WI Weather - Monday Partly Cloudy
Chance of T-Storm Chance of Showers Clearing Mostly Sunny Mostly Clear Mostly Sunny Partly Cloudy Mostly Cloudy Chance of Showers Partly Sunny Chance of Showers Partly Cloudy
Lo: 60°FLo: 16°C Hi: 75°FHi: 24°C
 Lo: 51°FLo: 11°C Hi: 79°FHi: 26°C
 Lo: 49°FLo: 9°C Hi: 79°FHi: 26°C
 Lo: 55°FLo: 13°C Hi: 79°FHi: 26°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
 Lo: 60°FLo: 16°C Hi: 80°FHi: 27°C
Lo: 55°FLo: 13°C
POP: 20% POP: 20% POP: 50% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 1211 AM CDT Wed Aug 26 2026 St. Clair Lake, WI Weather - WeatherWorld.com

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Issued: 1217 AM CDT Wed Aug 26 2026

Key Messages

  • Storm chances increase this evening through tonight with a low chance for severe storms north of I-90.
  • Afternoon temperatures remain in the upper 70s to low 80s each day and rain chances increase this upcoming weekend.

Discussion

... Issued at 1242 PM CDT Tue Aug 25 2026

This Afternoon through Tonight: Strong/Severe Storm Potential

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