Fairgrounds Weather Forecast

    • 58
    • 79

    Increasing Clouds

    • 55
    • 84

    Slight Chance Thunderstorms

    • 51
    • 75

    Mostly Sunny

    • 51
    • 77

    Partly Sunny

    • 53
    • 74

    Chance Rain Showers

    • 53
    • 74

    Partly Sunny

Today 5 Aug Pennington

Mostly sunny. Highs 75 to 80. Southwest Winds 10 to 20 Mph.

Tonight 5 Aug Pennington

Partly cloudy. Lows in the mid 50s. Southwest Winds 5 to 15 Mph.

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Fairgrounds Temperature Statistics

August Temperature

Thief River Falls, Thief River Falls Regional Airport (3.7 miles)

  • Lowest 3 August, 2026

    57.9 °F

  • Average August

    70.7 °F

  • Highest 2 August, 2026

    87.1 °F

Climate (2021–2026)

Thief River Falls, Thief River Falls Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    32.1 °F

  • Average 2021–2026

    41.1 °F

  • Average High 2021–2026

    49.9 °F
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