Prescott, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prescott, a city in Walla Walla County, Washington.
Overnight
51°F
Areas Of Smoke
Areas of smoke. Clear. Low around 51, with temperatures rising to around 53 overnight. East wind around 5 mph.
7-day forecast for Prescott
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Areas Of Smoke | 5 mph E | 0% |
| Tuesday | 90°F | Areas Of Smoke | 1 to 7 mph NE | 0% |
| Tuesday Night | 55°F | Patchy Smoke | 1 to 6 mph NE | 0% |
| Wednesday | 97°F | Patchy Smoke | 3 mph N | 0% |
| Wednesday Night | 58°F | Patchy Smoke then Clear | 3 mph E | 0% |
| Thursday | 101°F | Sunny | 1 to 5 mph SW | 0% |
| Thursday Night | 63°F | Clear | 2 to 8 mph SW | 0% |
| Friday | 98°F | Sunny | 8 to 14 mph SW | 0% |
| Friday Night | 62°F | Clear | 5 to 9 mph SW | 0% |
| Saturday | 94°F | Sunny | 5 to 10 mph SW | 0% |
| Saturday Night | 60°F | Mostly Clear | 8 mph SW | 0% |
| Sunday | 89°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 57°F | Mostly Clear | 7 mph SW | 0% |
| Monday | 88°F | Sunny | 6 to 9 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Prescott (46.299, -118.313). Updated through the day.
Growing snapshot for Prescott
Last spring frost
Mar 27
First fall frost
Oct 31
Growing season
219 days
Hardiness zone
7a
More local growing data for Prescott: nearby ZIP 99362 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Walla Walla Rgnl Ap, Wa (1.4 mi from Prescott). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.