Cornell Lake Weather Forecast

    • 53
    • 73

    Rain Showers Likely

    • 52
    • 74

    Rain Showers Likely

    • 56
    • 64

    Rain Showers

    • 52
    • 68

    Slight Chance Rain Showers

    • 48
    • 68

    Chance Rain Showers

    • 49
    • 66

    Chance Rain Showers

    • 49
    • 67

    Mostly Cloudy

Today 16 Sep Chippewa

Partly sunny. Highs around 70.

Tonight 16 Sep Chippewa

Mostly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the late evening and overnight. Patchy fog late in the night. Lows in the lower 50s. East Winds up to 5 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornell Lake Temperature Statistics

September Temperature

Chippewa Valley Regional Airport (18.6 miles)

  • Lowest 14 September, 2026

    41 °F

  • Average September

    69.8 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Chippewa Valley Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    36.9 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    57.2 °F
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