Round Mountain Airport Weather Forecast
- 47
- 65
Partly Sunny
- 46
- 66
Mostly Cloudy
- 32
- 56
Partly Sunny
- 37
- 59
Mostly Sunny
- 44
- 67
Partly Sunny
- 44
- 68
Mostly Sunny
Today 23 Mar Central Siskiyou County
Mostly cloudy in the morning then clearing. Highs in the mid 60s to lower 70s. West Winds around 5 Mph early in the morning becoming Light, then becoming south around 5 Mph early in the afternoon shifting to the southwest.
Tonight 23 Mar Central Siskiyou County
Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s. Southwest Winds 5 to 10 Mph.
Round Mountain Airport Temperature Statistics
March Temperature
Montague Siskiyou County Airport (20.5 miles)
Lowest 11 March, 2026
24.7 °FAverage March
48.4 °FHighest 18 March, 2026
81.6 °F
Climate (2021–Present)
Montague Siskiyou County Airport (20.5 miles)
Average Low 2021–2026
39.6 °FAverage 2021–2026
54.3 °FAverage High 2021–2026
69.2 °F