Grass Lake Weather Forecast

    • 26
    • 37

    Snow

    • 35
    • 46

    Breezy

    • 25
    • 43

    Slight Chance Snow

    • 30
    • 40

    Rain/Snow Likely

    • 11
    • 39

    Chance Rain/Snow

    • 6
    • 24

    Partly Sunny

Today 11 Mar Dane

Colder, cloudy. Patchy fog until late afternoon. Chance of light freezing Drizzle, possibly mixed with drizzle in the morning. Light snow likely through the day. Snow accumulation up to 1 inch. Highs in the upper 30s. Northwest Winds 10 to 20 Mph. Chance of precipitation 70 percent.

Tonight 11 Mar Dane

Cloudy. Slight chance of drizzle through the night. Chance of light freezing drizzle early in the morning. Patchy fog early in the morning. Near steady temperature in the mid 30s. North Winds 10 to 15 Mph. Chance of precipitation 20 percent.

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Grass Lake Temperature Statistics

March Temperature

Madison, Dane County Regional-Truax Field (17.4 miles)

  • Lowest 1 March, 2026

    3.7 °F

  • Average March

    38.7 °F

  • Highest 6 March, 2026

    60.7 °F

Climate (2021–Present)

Madison, Dane County Regional-Truax Field (17.4 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    59.1 °F
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