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. Low around 31, with temperatures rising to around 36 overnight. Southwest wind around 2 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: Nov 4, 2026 3:03 AM MST.
The active forecast window currently covers Nov 4 to Nov 10, 2026 for Thermopolis, WY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 4 to Nov 10, 2026
- Latest sync
- Nov 4, 2026 3:03 AM MST
- Forecast office
- RIW
- Source
- NOAA / NWS
Daily Outlook
This Week in Thermopolis
Sunday looks like the warmest upcoming period in Thermopolis at 63 degrees F.
Friday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Saturday Night at about 5 to 12 mph S.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 4, 2026 3:03 AM MST
- 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
Partly sunny. High near 54, with temperatures falling to around 49 in the afternoon. East southeast wind 1 to 5 mph.
Partly cloudy, with a low around 31. Southwest wind around 3 mph.
Mostly sunny, with a high near 56. South wind 3 to 10 mph.
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 33. West southwest wind 1 to 5 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 11am. Sunny, with a high near 54. South southeast wind around 3 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 30. South wind around 3 mph.
Sunny, with a high near 57.
Mostly clear, with a low around 33.
Sunny, with a high near 63.
Partly cloudy, with a low around 37.
Mostly sunny, with a high near 61.
Partly cloudy, with a low around 36.
Mostly sunny, with a high near 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 4
|
Mostly Cloudy
|
31°F |
2 mph
SW
|
|
Wednesday
Nov 4
|
Partly Sunny
|
54°F |
1 to 5 mph
ESE
|
|
Wednesday Night
Nov 4
|
Partly Cloudy
|
31°F |
3 mph
SW
|
|
Thursday
Nov 5
|
Mostly Sunny
|
56°F |
3 to 10 mph
S
|
|
Thursday Night
Nov 5
|
Mostly Cloudy then Slight Chance Rain Showers
|
33°F |
1 to 5 mph
WSW
|
|
Friday
Nov 6
|
Slight Chance Rain Showers then Sunny
|
54°F |
3 mph
SSE
|
|
Friday Night
Nov 6
|
Mostly Clear
|
30°F |
3 mph
S
|
|
Saturday
Nov 7
|
Sunny
|
57°F |
5 mph
S
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
33°F |
5 to 12 mph
S
|
|
Sunday
Nov 8
|
Sunny
|
63°F |
6 to 12 mph
S
|
|
Sunday Night
Nov 8
|
Partly Cloudy
|
37°F |
7 mph
SSW
|
|
Monday
Nov 9
|
Mostly Sunny
|
61°F |
5 mph
S
|
|
Monday Night
Nov 9
|
Partly Cloudy
|
36°F |
3 to 7 mph
S
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
63°F |
5 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thermopolis.
Nearby forecast pages are not available for this location yet.
