San Juan County, UT Weather Forecast
County weather hub
Sunny then Slight 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 slight chance of showers and thunderstorms after noon. Sunny, with a high near 83.
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
- Jul 14 to Jul 17, 2026
- Latest sync
- Jul 11, 2026 2:44 AM MDT
- Forecast office
- GJT
- Source
- NOAA / NWS
Daily Outlook
This Week in San Juan County
Tuesday looks like the warmest upcoming period in San Juan County at 83 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 10 mph SE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 2:44 AM MDT
- Coverage
- 4 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
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
5 to 10 mph
SE
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
64°F |
5 mph
ENE
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
5 to 10 mph
SE
|
|
Wednesday Night
Jul 15
|
Chance Showers And Thunderstorms
|
62°F |
5 mph
ESE
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
81°F |
5 mph
SE
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms
|
63°F |
5 mph
NNE
|
|
Friday
Jul 17
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
80°F |
5 mph
SE
|
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.