Washington, UT Weather & Growing Conditions
Today
107°F
Sunny
Sunny, with a high near 107. Southwest wind 2 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 107°F | Sunny | 2 to 12 mph SW | 0% |
| Tonight | 77°F | Mostly Clear | 5 to 12 mph NNW | 0% |
| Wednesday | 106°F | Sunny | 2 to 9 mph SSE | 0% |
| Wednesday Night | 78°F | Mostly Clear | 3 to 9 mph S | 0% |
| Thursday | 106°F | Sunny | 2 to 6 mph SSW | 1% |
| Thursday Night | 79°F | Mostly Clear | 3 to 7 mph S | 2% |
| Friday | 109°F | Sunny | 3 mph S | 1% |
| Friday Night | 80°F | Mostly Clear | 5 mph S | 2% |
| Saturday | 108°F | Sunny | 2 to 6 mph S | 0% |
| Saturday Night | 80°F | Mostly Clear | 3 to 7 mph SSE | 5% |
| Sunday | 106°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph S | 15% |
| Sunday Night | 79°F | Partly Cloudy | 3 to 10 mph SSE | 6% |
| Monday | 101°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph SSW | 15% |
| Monday Night | 77°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 9 mph ESE | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Washington, UT
Last spring frost
Mar 14
First fall frost
Nov 10
Growing season
239 days
Hardiness zone
8b
Explore more for Washington, UT: full frost dates · planting calendar · Utah frost dates
Climate data from the nearest NOAA station, St George, Ut (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.