Jamestown Weather Forecast

    • 70
    • 91

    Thunderstorms Likely

    • 67
    • 85

    Mostly Sunny

    • 72
    • 90

    Chance Thunderstorms

    • 69
    • 87

    Chance Thunderstorms

    • 66
    • 83

    Slight Chance Thunderstorms

    • 66
    • 84

    Mostly Sunny

    • 66
    • 86

    Mostly Sunny

Today 16 Aug Moniteau

Mostly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Northwest Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 16 Aug Moniteau

Mostly cloudy with Showers and Thunderstorms likely this Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. North Winds 5 to 10 Mph. Chance of rain 70 percent. Heat index Values up to 101 early this evening.

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Jamestown Temperature Statistics

August Temperature

Columbia, Columbia Regional Airport (14.3 miles)

  • Lowest 1 August, 2026

    64 °F

  • Average August

    77.9 °F

  • Highest 13 August, 2026

    95 °F

Climate (2021–2026)

Columbia, Columbia Regional Airport (14.3 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    67.5 °F
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