Evanston Weather Forecast

    • 40
    • 68

    Rain Showers Likely

    • 34
    • 61

    Chance Thunderstorms

    • 34
    • 64

    Mostly Sunny

    • 37
    • 69

    Partly Sunny

    • 35
    • 68

    Chance Rain Showers

    • 36
    • 71

    Mostly Sunny

Today 18 Sep Southwest Wyoming

Rain Showers likely and a slight chance of Thunderstorms in the Morning, then rain Showers likely and a chance of Thunderstorms in the afternoon. Highs in the upper 60s. Chance of precipitation 70 percent.

Tonight 18 Sep Southwest Wyoming

Rain Showers likely and a chance of Thunderstorms in the Evening, then a chance of rain Showers and a slight chance of Thunderstorms after midnight. Mostly cloudy. Lows around 40. Chance of precipitation 60 percent.

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Evanston Temperature Statistics

September Temperature

Evanston, Evanston-Uinta County Burns Field (3.1 miles)

  • Lowest 14 September, 2026

    41 °F

  • Average September

    62 °F

  • Highest 12 September, 2026

    81.6 °F

Climate (2021–2026)

Evanston, Evanston-Uinta County Burns Field (3.1 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    45 °F

  • Average High 2021–2026

    56.1 °F
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