Blackburn Airport Weather Forecast

    • 31
    • 48

    Becoming Sunny

    • 28
    • 48

    Partly Sunny

    • 43
    • 55

    Partly Sunny

    • 45
    • 72

    Mostly Sunny

    • 54
    • 73

    Partly Sunny

    • 58
    • 78

    Rain Showers Likely

Today 18 Apr Dane

Much cooler. Partly sunny. Highs in the upper 40s. West Winds 15 to 20 Mph.

Tonight 18 Apr Dane

Mostly clear. Lows in the lower 30s. West Winds up to 15 Mph. Gusts up to 30 Mph through around midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Blackburn Airport Temperature Statistics

April Temperature

Janesville-Rock County (18 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47 °F

  • Highest 12 April, 2026

    75.2 °F

Climate (2021–Present)

Janesville-Rock County (18 miles)

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

  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads