Weather · Snoqualmie, United States
Snoqualmie Weather in September
Expect mild, some rain in Snoqualmie through September: highs near 21°C, lows around 10°C, 100mm of rain across the month. It's one of the best months to visit.
Avg high
21°C
70°F
Avg low
10°C
50°F
Rainfall
100mm
#10 wettest of 12
What to pack
Layers, plus a jacket for mornings and nights. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Snoqualmie builds it around the season for you.