Thompson Springs, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompson Springs, a community in Grand County, Utah.
Overnight
72°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 72. North wind around 10 mph.
7-day forecast for Thompson Springs
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Patchy Smoke | 10 mph N | 0% |
| Tuesday | 99°F | Patchy Smoke | 5 to 15 mph WSW | 0% |
| Tuesday Night | 70°F | Patchy Smoke then Mostly Clear | 5 to 20 mph NNW | 0% |
| Wednesday | 97°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 70°F | Mostly Clear | 5 to 15 mph NNW | 0% |
| Thursday | 98°F | Sunny | 5 to 10 mph SE | 0% |
| Thursday Night | 71°F | Mostly Clear | 5 to 15 mph NW | 0% |
| Friday | 99°F | Sunny | 5 to 10 mph ESE | 0% |
| Friday Night | 72°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Saturday | 99°F | Sunny | 5 to 10 mph SE | 0% |
| Saturday Night | 73°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Sunday | 98°F | Sunny | 5 to 10 mph S | 0% |
| Sunday Night | 73°F | Partly Cloudy | 5 to 10 mph NNW | 3% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Thompson Springs (38.964, -109.704). Updated through the day.
Growing snapshot for Thompson Springs
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
6b
More local growing data for Thompson Springs: nearby ZIP 84540 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dewey, Ut (30.3 mi from Thompson Springs). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.