Blackburn Airport Weather Forecast

    • 52
    • 67

    Chance Rain Showers

    • 48
    • 70

    Rain Showers

    • 43
    • 61

    Mostly Cloudy

    • 38
    • 59

    Partly Sunny

    • 38
    • 58

    Partly Sunny

    • 36
    • 57

    Partly Sunny

Today 26 Apr Dane

Partly sunny. Highs in the upper 60s. Southeast Winds 5 to 15 Mph.

Tonight 26 Apr Dane

Partly cloudy in the evening then becoming mostly cloudy. Chance of light rain Showers and slight chance of Thunderstorms early in the morning. Lows in the lower 50s. Southeast Winds 10 to 15 Mph. Chance of precipitation 40 percent.

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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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