Grassy Lakes Weather Forecast

    • 48
    • 66

    Sunny

    • 52
    • 71

    Increasing Clouds

    • 54
    • 70

    Mostly Cloudy

    • 54
    • 72

    Partly Sunny

    • 54
    • 73

    Sunny

    • 56
    • 73

    Mostly Sunny

    • 57
    • 72

    Mostly Sunny

Today 18 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Mostly sunny. Highs 70 to 80.

Tonight 18 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Clear. Lows 44 to 54. North Winds up to 10 Mph with Gusts to around 20 Mph.

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  • Temperature Real-Time

Grassy Lakes Temperature Statistics

September Temperature

Chico Municipal Airport (36 miles)

  • Lowest 7 September, 2026

    53.6 °F

  • Average September

    69.1 °F

  • Highest 9 September, 2026

    102.2 °F

Climate (2021–2026)

Chico Municipal Airport (36 miles)

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  • Average Low 2021–2026

    52.8 °F

  • Average 2021–2026

    61.4 °F

  • Average High 2021–2026

    74.9 °F
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