Local weather forecast

Weather in Thermopolis, WY

Updated 2026-08-11 12:15 local time · ZIP codes 82443

Sunny
Now84°F

Sunny

High / Low96° / 65°
Rain chance0%
Wind9 mph
Weather alerts

Active alerts

5
Red Flag Warning issued August 10 at 8:54PM MDT until August 11 at 9:00PM MDT by NWS Riverton WY

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Northwest WY...Fire Weather Zone 286. * COUNTIES AFFECTED: In Central WY...Fremont. In North Central WY...Hot Springs...Park. * WIND: West 10 to 20 mph with gusts up to 35 mph. * HUMIDITY: As low as 12 percent. * TEMPERATURES: Lows in the lower 50s. Highs in the upper 70s.

Safety instructions

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Red Flag Warning issued August 10 at 8:54PM MDT until August 11 at 9:00PM MDT by NWS Riverton WY

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...285...300. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs...Johnson...Washakie. * WIND: West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 9 percent. * TEMPERATURES: Lows around 60. Highs in the lower 90s.

Safety instructions

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Red Flag Warning issued August 10 at 8:54PM MDT until August 11 at 9:00PM MDT by NWS Riverton WY

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...283...289. In North Central WY Fire Zone....287. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs. In Southwest WY...Sweetwater. * WIND: West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Lows around 60. Highs around 90.

Safety instructions

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Red Flag Warning issued August 10 at 8:54PM MDT until August 10 at 9:00PM MDT by NWS Riverton WY

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Southwest WY Fire Zone....279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Southwest WY...Sweetwater. In West Central WY...Lincoln...Sublette. * WIND: West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 14 percent. * TEMPERATURES: Lows in the mid 50s. Highs in the mid 80s.

Safety instructions

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Red Flag Warning issued August 10 at 8:54PM MDT until August 10 at 9:00PM MDT by NWS Riverton WY

* IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...285...300. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs...Johnson...Washakie. * WIND: West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 9 percent. * TEMPERATURES: Lows around 60. Highs in the lower 90s.

Safety instructions

A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Hourly

Next hours

NowSunny84°0% rain
1 PMSunny92°0% rain
2 PMSunny94°0% rain
3 PMSunny95°0% rain
4 PMSunny96°0% rain
5 PMSunny95°0% rain
6 PMSunny94°0% rain
7 PMSunny91°0% rain
8 PMSunny85°0% rain
9 PMClear81°0% rain
10 PMClear78°0% rain
11 PMClear76°1% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
96° 65°Sunny
Rain 0%Gust 12 mph
Tomorrow2026-08-12
Partly Cloudy
93° 71°Partly Cloudy
Rain 3%Gust 19 mph
Thursday2026-08-13
Partly Cloudy
86° 64°Partly Cloudy
Rain 17%Gust 13 mph
Conditions

Weather details

Feels like80°F
Humidity31%
Pressure30.06 inHg
Visibility9 mi
Wind9 mph NNE
Wind gusts10 mph
Precipitation0.00 in
UV index7
Daylight

Sunrise, sunset and moon

Sunrise06:14 AM
Sunset08:24 PM
Moonrise04:14 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 1%).

Light layers should work

It feels like 80°F with winds near 9 mph.

Best window: 12 PM

84°F, 0% rain chance and 9 mph wind.

Driving conditions look generally normal

Visibility is around 9 mi; gusts may reach 19 mph.

Run with a few weather adjustments

Current temperature is 84°F, wind 9 mph, rain chance up to 1%.

High UV protection needed

UV index is 7. Sunscreen, shade and protective clothing are recommended.

Thermopolis weather today

Sunny and 84°F in Thermopolis, WY. Today's high is 96°F with a 0% rain chance. Winds are around 9 mph with gusts near 10 mph. Relative humidity is 31%, pressure is 30.06 inHg, and visibility is about 9 miles.

Tonight and tomorrow in Thermopolis

Sunrise is at 06:14 AM and sunset is at 08:24 PM. Tomorrow's forecast calls for Partly Cloudy with a high near 93°F and a low near 71°F. The maximum rain chance is 3%.

Nearby

Weather near Thermopolis

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