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.
Showers and thunderstorms likely. Mostly cloudy. Low around 40, with temperatures rising to around 43 overnight. West wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
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
- May 30 to Jun 5, 2026
- Latest sync
- May 30, 2026 2:58 AM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Sweetwater County
Friday looks like the warmest upcoming period in Sweetwater County at 80 degrees F.
Sunday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Saturday Night at about 13 to 24 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 2:58 AM MDT
- Coverage
- 7 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
Rain showers likely before noon, then showers and thunderstorms likely. Mostly cloudy. High near 53, with temperatures falling to around 49 in the afternoon. West southwest wind 10 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 40. West wind 13 to 24 mph, with gusts as high as 35 mph. Chance of precipitation is 50%.
Sunny, with a high near 65. West wind 14 to 21 mph, with gusts as high as 35 mph.
Mostly clear, with a low around 37. South southwest wind 2 to 17 mph, with gusts as high as 29 mph.
Sunny, with a high near 72. South wind 2 to 14 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 41. South southwest wind 2 to 13 mph, with gusts as high as 22 mph.
Sunny, with a high near 76.
Mostly clear, with a low around 42.
Sunny, with a high near 78.
Partly cloudy, with a low around 45.
Sunny, with a high near 79.
Mostly clear, with a low around 45.
Sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
May 30
|
Showers And Thunderstorms Likely
|
40°F |
15 mph
W
|
|
Saturday
May 30
|
Rain Showers Likely
|
53°F |
10 to 23 mph
WSW
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
40°F |
13 to 24 mph
W
|
|
Sunday
May 31
|
Sunny
|
65°F |
14 to 21 mph
W
|
|
Sunday Night
May 31
|
Mostly Clear
|
37°F |
2 to 17 mph
SSW
|
|
Monday
Jun 1
|
Sunny
|
72°F |
2 to 14 mph
S
|
|
Monday Night
Jun 1
|
Mostly Clear
|
41°F |
2 to 13 mph
SSW
|
|
Tuesday
Jun 2
|
Sunny
|
76°F |
2 to 16 mph
SSW
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
42°F |
3 to 10 mph
WSW
|
|
Wednesday
Jun 3
|
Sunny
|
78°F |
2 to 10 mph
SSW
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
45°F |
5 to 10 mph
SW
|
|
Thursday
Jun 4
|
Sunny
|
79°F |
5 to 16 mph
WSW
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
45°F |
5 to 15 mph
NW
|
|
Friday
Jun 5
|
Sunny
|
80°F |
3 to 13 mph
SSW
|
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.
