Grant County Fairgrounds Weather Forecast

    • 72
    • 93

    Increasing Clouds

    • 71
    • 90

    Chance Rain Showers

    • 72
    • 90

    Chance Thunderstorms

    • 69
    • 90

    Mostly Sunny

    • 69
    • 88

    Partly Sunny

    • 67
    • 87

    Slight Chance Thunderstorms

Today 15 Jul Grant

Patchy fog in the morning. Mostly sunny. Hot with Highs in the mid 90s. Light Winds.

Tonight 15 Jul Grant

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the lower 70s. Northwest Winds around 5 Mph in the Evening, becoming light and variable. Heat index Values up to 100 early in the 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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