Sweetwater County, WY Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Sweetwater County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers before noon, then showers and thunderstorms likely. Partly sunny, with a high near 55. South wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Sweetwater 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 Sweetwater County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 17, 2026
- Latest sync
- Oct 11, 2026 1:19 PM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Sweetwater County
Saturday looks like the warmest upcoming period in Sweetwater County at 62 degrees F.
Thursday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Wednesday at about 9 to 15 mph N.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 11, 2026 1:19 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- RIW
- Radar station
- KRIW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms. Mostly cloudy, with a low around 30. West southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 48. North wind 9 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
A slight chance of rain showers before noon. Mostly sunny, with a high near 52. Chance of precipitation is 20%.
Mostly clear, with a low around 26.
Sunny, with a high near 56.
Mostly clear, with a low around 27.
Sunny, with a high near 62.
Mostly clear, with a low around 32.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Showers And Thunderstorms Likely
|
55°F |
8 to 14 mph
S
|
|
Tuesday Night
Oct 13
|
Showers And Thunderstorms
|
30°F |
14 mph
WSW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms Likely
|
48°F |
9 to 15 mph
N
|
|
Wednesday Night
Oct 14
|
Chance Rain Showers
|
29°F |
8 mph
WNW
|
|
Thursday
Oct 15
|
Slight Chance Rain Showers then Mostly Sunny
|
52°F |
7 to 10 mph
NW
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
26°F |
10 mph
NE
|
|
Friday
Oct 16
|
Sunny
|
56°F |
6 mph
ENE
|
|
Friday Night
Oct 16
|
Mostly Clear
|
27°F |
2 mph
SE
|
|
Saturday
Oct 17
|
Sunny
|
62°F |
5 to 9 mph
WSW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
32°F |
7 mph
WSW
|
Major City Forecasts
Live forecast snapshots for major cities across Sweetwater County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Sweetwater County.
Largest mapped city population in this region: 22,943.
