Lake Oahe Weather Forecast
- 66
- 94
Chance Thunderstorms
- 61
- 79
Chance Thunderstorms
- 64
- 83
Chance Thunderstorms
- 64
- 88
Chance Thunderstorms
- 67
- 91
Chance Thunderstorms
- 66
- 90
Chance Thunderstorms
Today 22 Jul Dewey
Mostly cloudy Early, then becoming partly sunny. A slight chance of Thunderstorms early. A slight chance of Thunderstorms this afternoon. Some Thunderstorms may be severe with damaging Winds and large hail early. Hot with Highs in the lower 90s. East Winds 10 to 15 Mph, becoming southeast this afternoon. Chance of rain 20 percent. Heat index Values up to 103 this afternoon.
Tonight 22 Jul Dewey
Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Thunderstorms. Showers likely after midnight. Humid with Lows in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent. Heat index Values up to 101 early in the evening.
Lake Oahe Temperature Statistics
July Temperature
Mobridge, Mobridge Municipal Airport (20.5 miles)
Lowest 17 July, 2025
44.7 °FAverage July
73.3 °FHighest 3 July, 2025
103.6 °F
Climate (2020–Present)
Mobridge, Mobridge Municipal Airport (20.5 miles)
Average Low 2020–2025
35.9 °FAverage 2020–2025
47.8 °FAverage High 2020–2025
60 °F