Granite Falls Weather Forecast
- 45
- 56
Rain
- 48
- 58
Rain
- 44
- 58
Rain
- 45
- 59
Chance Rain
- 46
- 61
Rain Likely
- 43
- 61
Chance Rain
- 46
- 65
Mostly Cloudy
Today 15 May Foothills and Valleys of the North Cascades
Mostly cloudy in the Morning, then a slight chance of rain early in the afternoon. Mostly cloudy with rain likely late in the afternoon. Rainfall Amounts a tenth to a quarter of an inch possible. Highs in the 50s. South wind around 10 Mph.
Tonight 15 May Foothills and Valleys of the North Cascades
Rain at Times in the Evening, then cloudy with a chance of rain after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the lower to mid 40s. West wind to 10 Mph in the evening becoming light.
Granite Falls Temperature Statistics
May Temperature
Arlington Municipal Airport (9.9 miles)
Lowest 5 May, 2025
36 °FAverage May
54.4 °FHighest 6 May, 2025
77 °F
Climate (2020–Present)
Arlington Municipal Airport (9.9 miles)
Average Low 2020–2025
42.4 °FAverage 2020–2025
50.5 °FAverage High 2020–2025
59.5 °F