San Juan County, UT Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across San Juan County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
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 2 of 2 mapped cities in San Juan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 26 to May 30, 2026
- Latest sync
- May 24, 2026 5:35 AM MDT
- Forecast office
- GJT
- Source
- NOAA / NWS
Daily Outlook
This Week in San Juan County
Thursday looks like the warmest upcoming period in San Juan County at 70 degrees F.
Thursday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Thursday at about 5 to 20 mph SSE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 24, 2026 5:35 AM MDT
- Coverage
- 5 days
- Time zone
- America/Denver
- Forecast office
- GJT
- Radar station
- KGJX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 47.
Sunny, with a high near 68.
Mostly clear, with a low around 46.
Sunny, with a high near 70.
Clear, with a low around 44.
Sunny, with a high near 67.
Mostly clear, with a low around 44.
Sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
SSE
|
|
Tuesday Night
May 26
|
Partly Cloudy
|
47°F |
5 to 10 mph
SE
|
|
Wednesday
May 27
|
Sunny
|
68°F |
5 to 15 mph
SE
|
|
Wednesday Night
May 27
|
Mostly Clear
|
46°F |
5 to 15 mph
S
|
|
Thursday
May 28
|
Sunny
|
70°F |
5 to 20 mph
SSE
|
|
Thursday Night
May 28
|
Clear
|
44°F |
0 to 15 mph
SSW
|
|
Friday
May 29
|
Sunny
|
67°F |
0 to 10 mph
SSW
|
|
Friday Night
May 29
|
Mostly Clear
|
44°F |
5 to 10 mph
NW
|
|
Saturday
May 30
|
Sunny
|
70°F |
5 to 10 mph
WSW
|
Major City Forecasts
Live forecast snapshots for major cities across San Juan County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in San Juan County.
Largest mapped city population in this region: 3,556.