Fairgrounds Weather Forecast

    • 55
    • 78

    Becoming Sunny

    • 61
    • 82

    Chance Rain Showers

    • 63
    • 85

    Chance Rain Showers

    • 68
    • 89

    Mostly Sunny

    • 71
    • 94

    Mostly Sunny

    • 68
    • 93

    Slight Chance Thunderstorms

Today 8 Jul Pennington

Mostly sunny. Highs 75 to 80. Northeast Winds 5 to 15 Mph.

Tonight 8 Jul Pennington

Mostly clear. Lows in the mid 50s. Northeast Winds up to 10 Mph.

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Fairgrounds Temperature Statistics

July Temperature

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

  • Lowest 3 July, 2026

    57.9 °F

  • Average July

    70.5 °F

  • Highest 5 July, 2026

    84.9 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    32 °F

  • Average 2021–2026

    41.1 °F

  • Average High 2021–2026

    49.9 °F
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