Tongue River Reservoir State Park Weather Forecast
- 47
- 74
Rain Showers Likely
- 45
- 72
Partly Sunny
- 48
- 73
Chance Rain Showers
- 48
- 79
Chance Thunderstorms
- 54
- 83
Slight Chance Thunderstorms
- 47
- 78
Rain Showers Likely
- 44
- 69
Rain Showers Likely
Today 22 Jun Southern Big Horn
Chance of Showers and Thunderstorms early in the Afternoon, then Showers likely and scattered Thunderstorms late in the afternoon. Some Thunderstorms may be severe. Highs in the lower 70s. North Winds 5 to 15 Mph. Chance of precipitation 70 percent.
Tonight 22 Jun Southern Big Horn
Rain Showers likely and scattered Thunderstorms early in the Evening, then chance of rain Showers late in the evening. Patchy fog in the late evening and overnight. Some Thunderstorms may be severe early in the evening. Lows in the upper 40s. Northwest Winds 5 to 10 Mph. Chance of precipitation 60 percent.
Tongue River Reservoir State Park Temperature Statistics
June Temperature
Sheridan County Airport (25.5 miles)
Lowest 8 June, 2026
35.7 °FAverage June
60.1 °FHighest 6 June, 2026
97.6 °F
Climate (2021–2026)
Sheridan County Airport (25.5 miles)
Average Low 2021–2026
33.4 °FAverage 2021–2026
47.6 °FAverage High 2021–2026
62.2 °F