East Thermopolis, WY Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for East Thermopolis, WY in one place.
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 98. North northwest wind 1 to 10 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for East Thermopolis, WY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 4:10 PM MDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for East Thermopolis, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 4:10 PM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in East Thermopolis
Saturday looks like the warmest upcoming period in East Thermopolis at 98 degrees F.
Thursday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Monday Night at about 6 to 16 mph N.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 4:10 PM 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
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 67. West wind 1 to 13 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 98. West northwest wind 1 to 8 mph.
Mostly clear, with a low around 67. West northwest wind 3 to 7 mph.
Sunny, with a high near 96. North northwest wind 3 to 14 mph.
A slight chance of rain showers. Partly cloudy, with a low around 65. Chance of precipitation is 20%.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Showers and thunderstorms likely. Mostly cloudy, with a low around 64.
A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90.
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
98°F |
1 to 10 mph
NNW
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
67°F |
1 to 13 mph
W
|
|
Sunday
Jul 19
|
Sunny then Slight Chance Showers And Thunderstorms
|
98°F |
1 to 8 mph
WNW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
67°F |
3 to 7 mph
WNW
|
|
Monday
Jul 20
|
Sunny
|
96°F |
3 to 14 mph
NNW
|
|
Monday Night
Jul 20
|
Slight Chance Rain Showers
|
65°F |
6 to 16 mph
N
|
|
Tuesday
Jul 21
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
93°F |
2 to 7 mph
ENE
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms
|
65°F |
6 to 9 mph
NW
|
|
Wednesday
Jul 22
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
2 to 7 mph
WNW
|
|
Wednesday Night
Jul 22
|
Showers And Thunderstorms Likely
|
64°F |
5 to 8 mph
WNW
|
|
Thursday
Jul 23
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
90°F |
2 to 7 mph
SE
|
|
Thursday Night
Jul 23
|
Chance Showers And Thunderstorms
|
63°F |
7 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around East Thermopolis.