Snohomish County, WA Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across Snohomish County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy, with a low around 43. Northeast wind around 2 mph.
County Weather Overview
This county weather page brings together forecast coverage for Snohomish County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 18 of 18 mapped cities in Snohomish County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 7:38 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Snohomish County
Friday looks like the warmest upcoming period in Snohomish County at 68 degrees F.
Overnight is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Thursday Night at about 0 to 13 mph SE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 7:38 AM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KATX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a high near 52. Southeast wind around 2 mph.
A slight chance of rain after 5am. Mostly cloudy, with a low around 48. South southeast wind 0 to 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain before 11am. Mostly cloudy, with a high near 56. East wind 0 to 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 47. Northeast wind 0 to 6 mph.
Mostly sunny, with a high near 67.
Mostly clear, with a low around 52.
Mostly sunny, with a high near 68.
Rain after 11pm. Mostly cloudy, with a low around 49.
Rain. Mostly cloudy, with a high near 52.
A slight chance of rain before 11pm. Partly cloudy, with a low around 43.
Partly sunny, with a high near 54.
Rain likely after 11pm. Mostly cloudy, with a low around 45.
Rain likely. Mostly cloudy, with a high near 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 13
|
Mostly Cloudy
|
43°F |
2 mph
NE
|
|
Tuesday
Oct 13
|
Mostly Cloudy
|
52°F |
2 mph
SE
|
|
Tuesday Night
Oct 13
|
Mostly Cloudy then Slight Chance Light Rain
|
48°F |
0 to 3 mph
SSE
|
|
Wednesday
Oct 14
|
Slight Chance Light Rain then Mostly Cloudy
|
56°F |
0 to 3 mph
E
|
|
Wednesday Night
Oct 14
|
Partly Cloudy
|
47°F |
0 to 6 mph
NE
|
|
Thursday
Oct 15
|
Mostly Sunny
|
67°F |
0 to 7 mph
ESE
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
52°F |
0 to 13 mph
SE
|
|
Friday
Oct 16
|
Mostly Sunny
|
68°F |
0 to 12 mph
ESE
|
|
Friday Night
Oct 16
|
Rain
|
49°F |
0 to 6 mph
SE
|
|
Saturday
Oct 17
|
Rain
|
52°F |
3 mph
SW
|
|
Saturday Night
Oct 17
|
Slight Chance Light Rain then Partly Cloudy
|
43°F |
3 mph
NE
|
|
Sunday
Oct 18
|
Partly Sunny
|
54°F |
0 to 3 mph
N
|
|
Sunday Night
Oct 18
|
Rain Likely
|
45°F |
0 to 5 mph
ESE
|
|
Monday
Oct 19
|
Rain Likely
|
48°F |
0 to 3 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Snohomish County.
Coverage
Forecast coverage currently spans 18 of 18 mapped cities in Snohomish County.
Largest mapped city population in this region: 112,482.
