Olsen Slough Weather Forecast

    • 52
    • 84

    Chance Rain Showers

    • 52
    • 83

    Chance Thunderstorms

    • 49
    • 82

    Chance Thunderstorms

    • 45
    • 80

    Slight Chance Thunderstorms

    • 45
    • 80

    Mostly Sunny

    • 46
    • 82

    Mostly Sunny

Today 15 Sep Sanpete Valley

Sunny in the Morning, then partly cloudy with a 30 percent chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s.

Tonight 15 Sep Sanpete Valley

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with rain Showers likely and a slight chance of Thunderstorms after midnight. Lows in the mid 40s. Chance of precipitation 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Olsen Slough Temperature Statistics

September Temperature

Delta, Delta Municipal Airport (41.6 miles)

  • Lowest 9 September, 2026

    50 °F

  • Average September

    71.5 °F

  • Highest 12 September, 2026

    93.2 °F

Climate (2021–2026)

Delta, Delta Municipal Airport (41.6 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    66.4 °F
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