Olo Mountain Weather Forecast
- 31
- 50
Mostly Cloudy
- 31
- 46
Mostly Cloudy
- 31
- 45
Rain/Snow Likely
- 26
- 40
Snow Likely
- 34
- 46
Rain/Snow Likely
- 34
- 43
Rain/Snow
Today 27 Mar Cascades of Snohomish and Northern King Counties
Mostly sunny. Freezing level near 4500 feet increasing to 6500 feet in the afternoon. Afternoon pass Temperatures in the lower 40s. Light wind.
Tonight 27 Mar Cascades of Snohomish and Northern King Counties
Mostly cloudy. Freezing level near 7000 feet decreasing to 5000 feet after midnight. Lows in the mid 20s. Light wind.
Olo Mountain Temperature Statistics
March Temperature
Arlington Municipal Airport (13.7 miles)
Lowest 2 March, 2026
27 °FAverage March
45 °FHighest 2 March, 2026
59 °F
Climate (2021–Present)
Arlington Municipal Airport (13.7 miles)
Average Low 2021–2026
42.6 °FAverage 2021–2026
50.8 °FAverage High 2021–2026
59.9 °F