Fairfax Weather Forecast

    • 70
    • 89

    Thunderstorms

    • 67
    • 84

    Thunderstorms Likely

    • 65
    • 78

    Rain Showers Likely

    • 65
    • 83

    Slight Chance Thunderstorms

    • 67
    • 84

    Slight Chance Thunderstorms

    • 70
    • 86

    Mostly Sunny

    • 71
    • 89

    Mostly Sunny

Today 9 Aug Atchison

Partly sunny with a chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

Tonight 9 Aug Atchison

Partly cloudy with a chance of Showers and Thunderstorms this Evening, then mostly cloudy with Showers and Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall. Locally heavy rainfall possible after midnight. Lows around 70. East Winds 5 to 10 Mph. Chance of rain 80 percent.

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Fairfax Temperature Statistics

August Temperature

Falls City, Brenner Field Airport (20.5 miles)

  • Lowest 2 August, 2025

    57.7 °F

  • Average August

    70.7 °F

  • Highest 7 August, 2025

    89.1 °F

Climate (2020–Present)

Falls City, Brenner Field Airport (20.5 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    54.8 °F

  • Average High 2020–2025

    66.2 °F
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