Thermopolis, WY Weather Forecast
Hot Springs County, Wyoming
Seven-day outlook
30–60°F across the weekThe week runs between 30° and 60°, with Saturday the warmest day of it. The second half leans cooling, and Monday is the coolest day in it. Monday is the wettest day, peaking near 68%. 5 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Thermopolis forecast
Thermopolis sits at 43.6476°N, 108.2145°W in Hot Springs County, Wyoming. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Hot Springs County
- Coordinates
- 43.6476°N, 108.2145°W
- Population
- 2,742 · 2023 estimate
- Land area
- 2.387 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Thermopolis, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Thermopolis?
The nearest Doppler radar is KRIW (Riverton, WY), 42 miles to the SSW. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Thermopolis its center is about 2,800 ft above ground. That is comfortably inside the useful range. The lowest scan passes low enough over Thermopolis to show rotation in the part of a storm where tornadoes actually form. Thermopolis is closer to its radar than 53% of US cities.
The closest instrument actually measuring the air is KHSG · Thermopolis/Hot Springs Cnty on the ASOS/AWOS network, 9.8 miles away. Near enough to be representative on most days, though a summer thunderstorm can soak one and miss the other entirely.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Wyoming observing network as of this build.
Forecasts near Thermopolis
- Worland, WY29 mi
- Riverton, WY44 mi
- Lander, WY63 mi
- Cody, WY73 mi
- Powell, WY82 mi
- Buffalo, WY88 mi
- Sheridan, WY101 mi
- Bar Nunn, WY106 mi
Elsewhere in Wyoming
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