San Juan County, WA Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across San Juan County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny, with a high near 74. North northwest wind 2 to 6 mph.
County Weather Overview
This county weather page brings together forecast coverage for San Juan County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 0 of 0 mapped cities in San Juan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 1 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 4:48 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in San Juan County
Tuesday looks like the warmest upcoming period in San Juan County at 79 degrees F.
Friday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Thursday at about 6 to 12 mph SW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 4:48 PM PDT
- Coverage
- 8 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
Partly cloudy. Low around 53, with temperatures rising to around 55 overnight. Northwest wind around 1 mph.
Sunny. High near 79, with temperatures falling to around 77 in the afternoon. North northeast wind 0 to 3 mph.
Mostly cloudy, with a low around 55. South southwest wind 0 to 3 mph.
Mostly cloudy, with a high near 74. South southwest wind 3 to 10 mph.
Mostly cloudy, with a low around 50.
Mostly sunny, with a high near 71.
A slight chance of rain after 5am. Partly cloudy, with a low around 48.
Rain likely. Partly sunny, with a high near 64.
Rain likely. Mostly cloudy, with a low around 47.
Rain likely. Partly sunny, with a high near 64.
A slight chance of rain before 11pm. Partly cloudy, with a low around 48.
Mostly sunny, with a high near 66.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 1
|
Partly Sunny
|
74°F |
2 to 6 mph
NNW
|
|
Tonight
Jun 1
|
Partly Cloudy
|
53°F |
1 mph
NW
|
|
Tuesday
Jun 2
|
Sunny
|
79°F |
0 to 3 mph
NNE
|
|
Tuesday Night
Jun 2
|
Mostly Cloudy
|
55°F |
0 to 3 mph
SSW
|
|
Wednesday
Jun 3
|
Mostly Cloudy
|
74°F |
3 to 10 mph
SSW
|
|
Wednesday Night
Jun 3
|
Mostly Cloudy
|
50°F |
5 to 8 mph
SW
|
|
Thursday
Jun 4
|
Mostly Sunny
|
71°F |
6 to 12 mph
SW
|
|
Thursday Night
Jun 4
|
Partly Cloudy then Slight Chance Light Rain
|
48°F |
6 to 12 mph
SW
|
|
Friday
Jun 5
|
Light Rain Likely
|
64°F |
7 mph
SSW
|
|
Friday Night
Jun 5
|
Light Rain Likely
|
47°F |
6 mph
SW
|
|
Saturday
Jun 6
|
Light Rain Likely
|
64°F |
7 mph
SW
|
|
Saturday Night
Jun 6
|
Slight Chance Light Rain then Partly Cloudy
|
48°F |
3 to 7 mph
WSW
|
|
Sunday
Jun 7
|
Mostly Sunny
|
66°F |
6 mph
SW
|
|
Sunday Night
Jun 7
|
Partly Cloudy
|
49°F |
1 to 6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around San Juan County.
Nearby forecast pages are not available for this location yet.
Coverage
Forecast coverage currently spans 0 of 0 mapped cities in San Juan County.