Jamestown Reservoir Weather Forecast

    • 51
    • 75

    Slight Chance Rain Showers

    • 58
    • 81

    Chance Rain Showers

    • 57
    • 84

    Partly Sunny

    • 53
    • 81

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

    • 59
    • 81

    Slight Chance Rain Showers

Today 18 Aug Stutsman

Decreasing Clouds. A slight chance of Showers in the morning. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 18 Aug Stutsman

Mostly clear. Lows in the lower 50s. North Winds around 5 Mph in the Evening, becoming light and variable.

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Jamestown Reservoir Temperature Statistics

August Temperature

Jamestown, Jamestown Municipal Airport (5.6 miles)

  • Lowest 5 August, 2026

    46.7 °F

  • Average August

    68.1 °F

  • Highest 2 August, 2026

    90.6 °F

Climate (2021–2026)

Jamestown, Jamestown Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    32.9 °F

  • Average 2021–2026

    43.5 °F

  • Average High 2021–2026

    54.2 °F
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