Star Valley Ranch Airport Weather Forecast
- 39
- 70
Mostly Sunny
- 41
- 76
Mostly Sunny
- 46
- 77
Mostly Cloudy
- 44
- 76
Partly Sunny
- 42
- 75
Slight Chance Thunderstorms
- 42
- 75
Mostly Sunny
Today 17 Sep Star Valley
Mostly sunny. Highs in the upper 60s.
Tonight 17 Sep Star Valley
Clear. Lows around 40.
Star Valley Ranch Airport Temperature Statistics
September Temperature
Afton WY (17.4 miles)
Lowest 14 September, 2025
32 °FAverage September
57 °FHighest 1 September, 2025
80.6 °F
Climate (2020–Present)
Afton WY (17.4 miles)
Average Low 2020–2025
25.3 °FAverage 2020–2025
38.8 °FAverage High 2020–2025
51.5 °F