Gridley Weather Forecast

    • 61
    • 91

    Mostly Sunny

    • 62
    • 88

    Chance Thunderstorms

    • 63
    • 84

    Chance Thunderstorms

    • 63
    • 80

    Rain Showers Likely

    • 61
    • 81

    Chance Rain Showers

    • 57
    • 78

    Chance Rain Showers

Today 18 Sep McLean

Sunny. Highs around 90. Southeast Winds around 5 Mph.

Tonight 18 Sep McLean

Mostly clear. Lows in the lower 60s. Southeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gridley Temperature Statistics

September Temperature

Pontiac Municipal Airport (18 miles)

  • Lowest 8 September, 2025

    38.3 °F

  • Average September

    64.1 °F

  • Highest 13 September, 2025

    92.1 °F

Climate (2020–Present)

Pontiac Municipal Airport (18 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    61.9 °F
Get WillyWeather+ to remove ads