Merrillan Weather Forecast

    • 39
    • 55

    Decreasing Clouds

    • 39
    • 72

    Sunny

    • 56
    • 74

    Mostly Sunny

    • 50
    • 77

    Rain Showers

    • 38
    • 63

    Partly Sunny

    • 37
    • 61

    Mostly Cloudy

Today 20 Apr Jackson

Mostly sunny. Highs in the mid 50s. South Winds 5 to 10 Mph.

Tonight 20 Apr Jackson

Mostly cloudy in the Evening, then becoming partly cloudy. Not as cool with Lows around 40. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merrillan Temperature Statistics

April Temperature

Black River Falls Area Airport (13.7 miles)

  • Lowest 7 April, 2026

    10.4 °F

  • Average April

    45.6 °F

  • Highest 17 April, 2026

    80.6 °F

Climate (2021–Present)

Black River Falls Area Airport (13.7 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    58.3 °F
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