Iron Mountain Weather Forecast
- 41
- 53
Breezy
- 34
- 61
Breezy
- 38
- 61
Mostly Cloudy
- 41
- 60
Breezy
- 36
- 59
Breezy
- 29
- 52
Breezy
Today 21 Dec Central Laramie County
Partly sunny. Not as cool with Highs in the lower 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.
Tonight 21 Dec Central Laramie County
Mostly cloudy. Cold with Lows in the mid 20s. Temperature rising into the lower 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.
Iron Mountain Temperature Statistics
December Temperature
Cheyenne, Cheyenne Airport (14.9 miles)
Lowest 4 December, 2025
6.1 °FAverage December
38.1 °FHighest 14 December, 2025
64 °F
Climate (2020–Present)
Cheyenne, Cheyenne Airport (14.9 miles)
Average Low 2020–2025
36.1 °FAverage 2020–2025
48.4 °FAverage High 2020–2025
60.7 °F