Keizer, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Keizer, a city in Marion County, Oregon.
This Afternoon
59°F
Partly Sunny
Partly sunny. High near 59, with temperatures falling to around 56 in the afternoon. North northeast wind around 2 mph.
7-day forecast for Keizer
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Partly Sunny | 2 mph NNE | 4% |
| Tonight | 39°F | Patchy Fog | 1 mph S | 3% |
| Wednesday | 57°F | Patchy Fog then Chance Light Rain | 1 to 7 mph S | 51% |
| Wednesday Night | 48°F | Light Rain then Mostly Cloudy | 5 to 14 mph S | 94% |
| Thursday | 59°F | Partly Sunny | 2 to 7 mph S | 9% |
| Thursday Night | 45°F | Mostly Cloudy then Chance Light Rain | 3 mph S | 39% |
| Friday | 59°F | Chance Light Rain | 3 to 7 mph S | 39% |
| Friday Night | 46°F | Slight Chance Light Rain then Mostly Cloudy | 0 to 5 mph S | 15% |
| Saturday | 62°F | Patchy Fog then Partly Sunny | 0 to 5 mph S | 12% |
| Saturday Night | 49°F | Light Rain Likely | 5 to 20 mph S | 64% |
| Sunday | 59°F | Light Rain Likely | 2 to 10 mph SSW | 64% |
| Sunday Night | 45°F | Patchy Fog | 2 mph NNE | 15% |
| Monday | 58°F | Chance Light Rain | 1 to 6 mph S | 43% |
| Monday Night | 47°F | Chance Light Rain | 6 to 14 mph S | 43% |
Forecast source: National Weather Service (api.weather.gov) for Keizer (45.003, -123.024). Updated through the day.
Growing snapshot for Keizer
Last spring frost
Apr 3
First fall frost
Nov 1
Growing season
212 days
Hardiness zone
8b
More local growing data for Keizer: nearby ZIP 97303 weather · frost dates · planting calendar · Oregon frost dates
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Climate data from the nearest NOAA station, Salem Mcnary Fld, Or (8.7 mi from Keizer). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.