Westport Weather Forecast

    • 66
    • 69

    Rain Showers

    • 63
    • 80

    Rain Showers

    • 44
    • 73

    Chance Thunderstorms

    • 40
    • 62

    Partly Sunny

    • 44
    • 64

    Partly Sunny

    • 49
    • 69

    Mostly Cloudy

    • 53
    • 75

    Slight Chance Thunderstorms

Today 17 May Dane

Mostly cloudy with a 50 percent chance of light Showers and Thunderstorms. Southeast Winds 10 to 15 Mph.

Tonight 17 May Dane

Mostly cloudy. Rain Showers likely and chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 5 to 15 Mph. Chance of precipitation 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Westport Temperature Statistics

May Temperature

Madison, Dane County Regional-Truax Field (3.7 miles)

  • Lowest 2 May, 2026

    28.7 °F

  • Average May

    52.1 °F

  • Highest 15 May, 2026

    81 °F

Climate (2021–Present)

Madison, Dane County Regional-Truax Field (3.7 miles)

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

  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    59.1 °F
Get WillyWeather+ to remove ads