River Junction Weather Forecast

    • 67
    • 90

    Thunderstorms Likely

    • 57
    • 85

    Rain Showers

    • 60
    • 82

    Sunny

    • 61
    • 86

    Chance Thunderstorms

    • 55
    • 78

    Slight Chance Thunderstorms

    • 54
    • 76

    Slight Chance Thunderstorms

Today 10 Jun Johnson

Mostly sunny. A chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Humid with Highs in the upper 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 10 Jun Johnson

Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Thunderstorms after midnight. Humid with Lows in the mid 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 70 percent.

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River Junction Temperature Statistics

June Temperature

Iowa City Municipal Airport (10.6 miles)

  • Lowest 2 June, 2026

    52 °F

  • Average June

    74.8 °F

  • Highest 6 June, 2026

    90 °F

Climate (2021–Present)

Iowa City Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.3 °F
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