Peterson Reservoir Weather Forecast

    • 69
    • 94

    Increasing Clouds

    • 64
    • 89

    Chance Thunderstorms

    • 61
    • 84

    Breezy

    • 63
    • 88

    Mostly Sunny

    • 68
    • 92

    Breezy

    • 65
    • 94

    Breezy

Today 29 Jul Keya Paha

Sunny. Highs in the mid 90s. South Winds up to 10 Mph, becoming southeast in the afternoon. Highest heat index Readings around 100 in the afternoon.

Tonight 29 Jul Keya Paha

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. South Winds 10 to 15 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Peterson Reservoir Temperature Statistics

July Temperature

Ainsworth Regional Airport (39.8 miles)

  • Lowest 5 July, 2026

    59 °F

  • Average July

    77.8 °F

  • Highest 25 July, 2026

    107.2 °F

Climate (2021–2026)

Ainsworth Regional Airport (39.8 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    62.5 °F
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