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Grass Lake, MI Weather Forecast

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Grass Lake, MI Weather Forecast

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Grass Lake MI weather - Clear - 39°F
Clear
39°F
Updated 7:02 am
Feels Like 47°F
Humidity 95%
Wind N 0 mph
Barometer  30.18 in
Dew Point 38°F
Grass Lake MI weather - Clear - 4°C
Clear
4°C
Updated 7:02 am
Feels Like 8°C
Humidity 95%
Wind N 0 km/h
Barometer  102.2 kPa
Dew Point 3°C
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Grass Lake Weather Forecast

EARLY THIS MORNING TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT COLUMBUS DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY
Grass Lake, MI Weather - Early This Morning Clear Grass Lake, MI Weather - Today Mostly Sunny Grass Lake, MI Weather - Tonight Partly Cloudy Grass Lake, MI Weather - Saturday Mostly Sunny Grass Lake, MI Weather - Saturday Night Chance Of Showers Grass Lake, MI Weather - Sunday Chance Of Showers Grass Lake, MI Weather - Sunday Night Partly Cloudy Grass Lake, MI Weather - Columbus Day Patchy Fog Grass Lake, MI Weather - Monday Night Chance Of T-Storm Grass Lake, MI Weather - Tuesday Rain Showers Grass Lake, MI Weather - Tuesday Night Chance Of Showers Grass Lake, MI Weather - Wednesday Rain Showers
Clear Mostly Sunny Partly Cloudy Mostly Sunny Chance of Showers Chance of Showers Partly Cloudy Patchy Fog Chance of T-Storm Rain Showers Chance of Showers Rain Showers
Lo: 41°FLo: 5°C Hi: 69°FHi: 21°C
 Lo: 51°FLo: 11°C Hi: 75°FHi: 24°C
 Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
 Lo: 51°FLo: 11°C Hi: 75°FHi: 24°C
 Lo: 59°FLo: 15°C Hi: 70°FHi: 21°C
 Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
POP: 50% POP: 50% POP: 40% POP: 20% POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 542 AM EDT Fri Oct 09 2026 Grass Lake, MI Weather - WeatherWorld.com

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Grass Lake Forecast Discussion

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Issued: 316 AM EDT Fri Oct 9 2026

Key Messages

  • Light rain possible tonight
  • Isaias could bring some showers Sunday
  • Pattern change with Cold front Monday into Tuesday

Discussion

... Issued at 258 AM EDT Fri Oct 9 2026
  • Light rain possible tonight

    • A negatively tilted mid level ridge will by driving to the east by an approaching upper level system moving through western Canada. This will bring some warm air advection into Michigan late today through Saturday. Given that warm air advection, there could be enough moisture and lift to bring...