San Juan County, UT Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across San Juan County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 33. North wind 5 to 10 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 2 of 2 mapped cities in San Juan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 6:36 AM MDT
- Forecast office
- GJT
- Source
- NOAA / NWS
Daily Outlook
This Week in San Juan County
Monday looks like the warmest upcoming period in San Juan County at 54 degrees F.
Overnight is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Thursday at about 10 to 15 mph NNE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 6:36 AM MDT
- Coverage
- 7 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
Sunny, with a high near 48. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Clear, with a low around 36. North northeast wind 5 to 15 mph, with gusts as high as 35 mph.
Sunny, with a high near 51. East northeast wind around 5 mph.
Mostly clear, with a low around 36. East northeast wind around 5 mph.
Mostly sunny, with a high near 52.
Mostly cloudy, with a low around 41.
Partly sunny, with a high near 52.
Partly cloudy, with a low around 40.
Sunny, with a high near 54.
A slight chance of rain showers after midnight. Mostly clear, with a low around 44.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 53.
A chance of rain showers before midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Rain showers likely before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 15
|
Mostly Clear
|
33°F |
5 to 10 mph
N
|
|
Thursday
Oct 15
|
Sunny
|
48°F |
10 to 15 mph
NNE
|
|
Thursday Night
Oct 15
|
Clear
|
36°F |
5 to 15 mph
NNE
|
|
Friday
Oct 16
|
Sunny
|
51°F |
5 mph
ENE
|
|
Friday Night
Oct 16
|
Mostly Clear
|
36°F |
5 mph
ENE
|
|
Saturday
Oct 17
|
Mostly Sunny
|
52°F |
5 mph
E
|
|
Saturday Night
Oct 17
|
Mostly Cloudy
|
41°F |
0 to 5 mph
ENE
|
|
Sunday
Oct 18
|
Partly Sunny
|
52°F |
5 mph
SE
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
40°F |
0 mph
|
|
Monday
Oct 19
|
Sunny
|
54°F |
0 to 5 mph
ESE
|
|
Monday Night
Oct 19
|
Mostly Clear then Slight Chance Rain Showers
|
44°F |
5 mph
E
|
|
Tuesday
Oct 20
|
Chance Rain Showers
|
53°F |
5 to 10 mph
ESE
|
|
Tuesday Night
Oct 20
|
Chance Rain Showers
|
44°F |
5 mph
SE
|
|
Wednesday
Oct 21
|
Rain Showers Likely
|
52°F |
5 to 10 mph
SSE
|
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.