Blackburn Airport Weather Forecast

    • 35
    • 53

    Chance Rain Showers

    • 33
    • 54

    Slight Chance Rain Showers

    • 33
    • 52

    Partly Sunny

    • 38
    • 57

    Partly Sunny

    • 43
    • 65

    Chance Rain Showers

    • 43
    • 66

    Chance Rain Showers

Today 29 Apr Dane

Mostly cloudy. Chance of light rain Showers through the day. Slight chance of Thunderstorms early in the afternoon. Highs in the mid 50s. Northwest Winds 5 to 15 Mph. Chance of precipitation 50 percent.

Tonight 29 Apr Dane

Mostly clear. Areas of frost after midnight. Lows in the mid 30s. Northwest Winds up to 10 Mph.

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Blackburn Airport Temperature Statistics

April Temperature

Janesville-Rock County (18 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47.9 °F

  • Highest 17 April, 2026

    78.8 °F

Climate (2021–Present)

Janesville-Rock County (18 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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