Peterson Reservoir Weather Forecast
- 65
- 86
Thunderstorms Likely
- 63
- 84
Partly Sunny
- 65
- 86
Partly Sunny
- 69
- 96
Slight Chance Thunderstorms
- 69
- 96
Mostly Sunny
- 66
- 95
Chance Thunderstorms
Today 23 Jul Keya Paha
Partly sunny with a chance of Showers and a slight chance of Thunderstorms in the Morning, then mostly cloudy with Showers and Thunderstorms likely in the afternoon. Highs in the mid 80s. Temperature falling into the in the upper 70s in the afternoon. Northwest Winds around 10 Mph. Chance of precipitation 70 percent.
Tonight 23 Jul Keya Paha
Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 60s. Northwest Winds up to 10 Mph. Chance of precipitation 50 percent.
Peterson Reservoir Temperature Statistics
July Temperature
Ainsworth Regional Airport (39.8 miles)
Lowest 17 July, 2025
52.2 °FAverage July
73.5 °FHighest 14 July, 2025
96.8 °F
Climate (2020–Present)
Ainsworth Regional Airport (39.8 miles)
Average Low 2020–2025
37.4 °FAverage 2020–2025
49.2 °FAverage High 2020–2025
61.7 °F