McArthur Weather Forecast
- 27
- 62
Increasing Clouds
- 34
- 73
Partly Sunny
- 35
- 74
Partly Sunny
- 38
- 73
Mostly Cloudy
- 35
- 68
Mostly Cloudy
- 32
- 55
Rain/Snow Likely
Today 26 Mar Modoc County
Sunny. Highs in the mid 50s to lower 60s. Northeast Winds 10 to 15 Mph.
Tonight 26 Mar Modoc County
Mostly cloudy. Lows in the lower to mid 30s. Northeast Winds 10 to 15 Mph.
McArthur Temperature Statistics
March Temperature
Alturas (10.6 miles)
Lowest 11 March, 2026
20.6 °FAverage March
47.1 °FHighest 20 March, 2026
82.7 °F
Climate (2021–Present)
Alturas (10.6 miles)
Average Low 2021–2026
33.5 °FAverage 2021–2026
49.6 °FAverage High 2021–2026
64.9 °F