Cultus Mountain Weather Forecast
- 41
- 46
Rain
- 42
- 53
Mostly Cloudy
- 44
- 54
Mostly Cloudy
- 44
- 55
Partly Sunny
- 47
- 58
Mostly Cloudy
- 47
- 59
Partly Sunny
Today 16 May Foothills and Valleys of the North Cascades
Rain Showers likely in the Morning, then mostly cloudy with a chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Rainfall Amounts a half inch to one inch Possible, except higher Amounts possible in Thunderstorms. Highs in the 50s. South wind 10 to 15 Mph becoming west in the afternoon.
Tonight 16 May Foothills and Valleys of the North Cascades
Mostly cloudy with a chance of rain Showers. Lows in the lower to mid 40s. West wind 10 to 15 Mph in the evening becoming light.
Cultus Mountain Temperature Statistics
May Temperature
Burlington/Mount Vernon, Skagit Regional Airport (13 miles)
Lowest 11 May, 2026
44.6 °FAverage May
57.2 °FHighest 4 May, 2026
78.8 °F
Climate (2021–Present)
Burlington/Mount Vernon, Skagit Regional Airport (13 miles)
Average Low 2021–2026
43.9 °FAverage 2021–2026
51.4 °FAverage High 2021–2026
59.6 °F