Blackburn Airport Weather Forecast

    • 46
    • 62

    Slight Chance Rain Showers

    • 48
    • 65

    Partly Sunny

    • 48
    • 66

    Mostly Cloudy

    • 47
    • 66

    Mostly Cloudy

    • 50
    • 64

    Mostly Cloudy

    • 52
    • 67

    Partly Sunny

Today 22 Sep Dane

Partly sunny. A 20 percent chance of light rain Showers in the morning. Highs in the lower 60s. Northeast Winds 5 to 15 Mph.

Tonight 22 Sep Dane

Partly cloudy. Lows in the mid 40s. Northeast Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Blackburn Airport Temperature Statistics

September Temperature

Janesville-Rock County (18 miles)

  • Lowest 14 September, 2026

    42.8 °F

  • Average September

    67.1 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (18 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.2 °F
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