Grant County Fairgrounds Weather Forecast

    • 69
    • 92

    Mostly Sunny

    • 71
    • 93

    Increasing Clouds

    • 71
    • 92

    Chance Rain Showers

    • 72
    • 90

    Chance Thunderstorms

    • 69
    • 90

    Mostly Sunny

    • 69
    • 88

    Slight Chance Rain Showers

    • 67
    • 87

    Slight Chance Thunderstorms

Today 14 Jul Grant

Sunny, hot with Highs in the lower 90s. West Winds 5 to 10 Mph. Heat index Values up to 100.

Tonight 14 Jul Grant

Mostly clear. Patchy fog after midnight. Lows in the upper 60s. Light Winds. Heat index Values up to 100 early this evening.

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Grant County Fairgrounds Temperature Statistics

July Temperature

Platteville Municipal Airport (16.8 miles)

  • Lowest 7 July, 2026

    61.2 °F

  • Average July

    76.8 °F

  • Highest 1 July, 2026

    89.8 °F

Climate (2021–2026)

Platteville Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.8 °F
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