Thermopolis, WY Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Thermopolis, WY in one place.
Mostly cloudy. High near 81, with temperatures falling to around 78 in the afternoon. Southwest wind 8 to 23 mph, with gusts as high as 31 mph.
Local Weather Overview
This forecast page for 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: Jun 8, 2026 10:39 PM MDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Thermopolis, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 8, 2026 10:39 PM MDT
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Thermopolis
Friday looks like the warmest upcoming period in Thermopolis at 85 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Wednesday at about 7 to 28 mph WSW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 10:39 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
Mostly clear, with a low around 47. Southwest wind 6 to 21 mph, with gusts as high as 28 mph.
Sunny, with a high near 74. West southwest wind 7 to 28 mph, with gusts as high as 36 mph.
Partly cloudy, with a low around 41. West northwest wind 2 to 22 mph, with gusts as high as 30 mph.
Sunny, with a high near 75. North wind 2 to 9 mph.
Clear, with a low around 47. Northwest wind 2 to 8 mph.
Sunny, with a high near 85.
Clear, with a low around 50.
Sunny, with a high near 81.
A chance of showers and thunderstorms. Partly cloudy, with a low around 47.
A slight chance of rain showers before noon, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 72.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 46.
A slight chance of rain showers before noon. Mostly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Mostly Cloudy
|
81°F |
8 to 23 mph
SW
|
|
Tuesday Night
Jun 9
|
Mostly Clear
|
47°F |
6 to 21 mph
SW
|
|
Wednesday
Jun 10
|
Sunny
|
74°F |
7 to 28 mph
WSW
|
|
Wednesday Night
Jun 10
|
Partly Cloudy
|
41°F |
2 to 22 mph
WNW
|
|
Thursday
Jun 11
|
Sunny
|
75°F |
2 to 9 mph
N
|
|
Thursday Night
Jun 11
|
Clear
|
47°F |
2 to 8 mph
NW
|
|
Friday
Jun 12
|
Sunny
|
85°F |
1 to 7 mph
SE
|
|
Friday Night
Jun 12
|
Clear
|
50°F |
5 to 15 mph
NNW
|
|
Saturday
Jun 13
|
Sunny
|
81°F |
3 to 12 mph
NNW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
47°F |
13 to 24 mph
NNW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
72°F |
7 to 13 mph
NNW
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms
|
46°F |
3 to 14 mph
NNW
|
|
Monday
Jun 15
|
Slight Chance Rain Showers then Mostly Sunny
|
74°F |
2 to 9 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thermopolis.
Nearby forecast pages are not available for this location yet.
