Merrillan Weather Forecast

    • 49
    • 78

    Decreasing Clouds

    • 50
    • 75

    Mostly Sunny

    • 56
    • 81

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

    • 66
    • 87

    Chance Thunderstorms

    • 64
    • 91

    Mostly Sunny

Today 21 Jul Jackson

Partly sunny. Not as warm with Highs in the upper 70s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph late this morning.

Tonight 21 Jul Jackson

Partly cloudy. Cooler with Lows in the lower 50s. North Winds 5 to 10 Mph.

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Merrillan Temperature Statistics

July Temperature

Black River Falls Area Airport (13.7 miles)

  • Lowest 19 July, 2026

    54 °F

  • Average July

    74.7 °F

  • Highest 15 July, 2026

    96.4 °F

Climate (2021–2026)

Black River Falls Area Airport (13.7 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    58.3 °F
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