Grant County Fairgrounds Weather Forecast

    • 55
    • 79

    Mostly Cloudy

    • 58
    • 78

    Mostly Cloudy

    • 55
    • 81

    Slight Chance Thunderstorms

    • 54
    • 82

    Mostly Sunny

    • 60
    • 84

    Partly Sunny

    • 64
    • 85

    Chance Rain Showers

Today 30 May Grant

Partly sunny. Highs around 80. East Winds 10 to 15 Mph.

Tonight 30 May Grant

Mostly cloudy. Near steady temperature around 60. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant County Fairgrounds Temperature Statistics

May Temperature

Platteville Municipal Airport (16.8 miles)

  • Lowest 2 May, 2026

    32 °F

  • Average May

    59.5 °F

  • Highest 27 May, 2026

    88.3 °F

Climate (2021–Present)

Platteville Municipal Airport (16.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.8 °F
Get WillyWeather+ to remove ads