Riverside, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riverside, a community in Umatilla County, Oregon.
Overnight
47°F
Areas Of Smoke
Areas of smoke. Clear. Low around 47, with temperatures rising to around 49 overnight. East wind around 3 mph.
7-day forecast for Riverside
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Areas Of Smoke | 3 mph E | 0% |
| Tuesday | 89°F | Areas Of Smoke | 2 to 9 mph N | 0% |
| Tuesday Night | 52°F | Areas Of Smoke | 3 to 7 mph E | 0% |
| Wednesday | 95°F | Areas Of Smoke | 2 to 7 mph N | 0% |
| Wednesday Night | 56°F | Areas Of Smoke then Clear | 3 to 7 mph SE | 0% |
| Thursday | 99°F | Sunny | 3 to 8 mph SW | 0% |
| Thursday Night | 61°F | Clear | 2 to 8 mph SW | 0% |
| Friday | 97°F | Sunny | 6 to 14 mph SW | 0% |
| Friday Night | 59°F | Clear | 3 to 14 mph SW | 0% |
| Saturday | 94°F | Sunny | 3 to 14 mph SW | 0% |
| Saturday Night | 57°F | Mostly Clear | 6 to 14 mph SW | 0% |
| Sunday | 88°F | Sunny | 6 to 13 mph W | 0% |
| Sunday Night | 53°F | Mostly Clear | 5 to 12 mph SW | 0% |
| Monday | 87°F | Sunny | 5 to 9 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Riverside (45.677, -118.737). Updated through the day.
Growing snapshot for Riverside
Last spring frost
Apr 22
First fall frost
Oct 9
Growing season
170 days
Hardiness zone
7a
More local growing data for Riverside: nearby ZIP 97801 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
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Hermiston
Kirkpatrick
McKay
Meacham
Milton-Freewater
Mission
Pendleton
Pilot Rock
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Tutuilla
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Umapine
Umatilla
Weston
Climate data from the nearest NOAA station, Pendleton Dwtn, Or (1.3 mi from Riverside). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.