River Lake Weather Forecast

    • 62
    • 79

    Increasing Clouds

    • 59
    • 83

    Slight Chance Thunderstorms

    • 54
    • 77

    Chance Rain Showers

    • 49
    • 68

    Mostly Cloudy

    • 48
    • 64

    Slight Chance Rain Showers

    • 52
    • 68

    Chance Rain Showers

Today 15 Sep Northern Cook/Northern Lake

Mostly sunny. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 15 Sep Northern Cook/Northern Lake

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Humid with Lows around 60. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

River Lake Temperature Statistics

September Temperature

Ely, Ely Municipal Airport (32.3 miles)

  • Lowest 6 September, 2025

    35.6 °F

  • Average September

    53.8 °F

  • Highest 1 September, 2025

    75.2 °F

Climate (2020–Present)

Ely, Ely Municipal Airport (32.3 miles)

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  • Average Low 2020–2025

    29.4 °F

  • Average 2020–2025

    40.3 °F

  • Average High 2020–2025

    49.9 °F
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