Oak Grove, Oregon Weather
Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →
Oak Grove weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——81°52°—
- MondayJul 6Clear——87°57°+6°
- TuesdayJul 7Overcast——84°56°-3°
- WednesdayJul 8Overcast——79°56°-5°
- ThursdayJul 9Overcast——82°53°+3°
- FridayJul 10Partly Cloudy——83°54°+1°
- SaturdayJul 11Overcast——80°59°-3°
AQI 18 (Good), driven by PM2.5. AQI down 11 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:35 PM
- Moonset
- 11:27 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Oak Grove at a glance
- Today vs. normal: 14°F below the seasonal normal for this latitude
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Oak Grove
- Sun81°52°0%
- Mon87°57°0%
- Tue84°56°0%
- Wed79°56°1%
- Thu82°53°0%
- Fri83°54°0%
- Sat80°59°4%
- Sun86°53°1%
- Mon90°58°2%
- Tue92°63°1%
- Wed89°60°0%
- Thu92°63°10%
- Fri94°64°0%
- Sat92°63°6%
- Sun87°60°5%
- Mon84°55°3%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Microseason · July 1–5
Fireweed Ignites
Magenta fireweed spires surge from burned and cleared slopes, their blooms climbing from base upward. July's signature color claims the disturbed ground.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
The year in Oak Grove tops out in August (~69°F) and dips lowest in January (~39°F), with December wettest at 7.2 inches and July driest at 0.3 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 39° | 7.2″ | 23 |
| February | 41° | 5.5″ | 19 |
| March | 44° | 5.9″ | 22 |
| April | 50° | 3.9″ | 19 |
| May | 56° | 2.7″ | 17 |
| June | 62° | 1.7″ | 13 |
| July | 68° | 0.3″ | 4 |
| August | 69° | 0.5″ | 5 |
| September | 63° | 1.9″ | 10 |
| October | 53° | 5.7″ | 17 |
| November | 45° | 7.1″ | 21 |
| December | 39° | 7.2″ | 22 |
Regional context
Oak Grove swings from 39°F in January to 68°F in July (29°F) per NOAA NCEI 1991-2020 normals; precipitation in Oak Grove runs about 49.7 inches on roughly 192 measurable days.
Precipitation in Oak Grove peaks in the cool season: December averages 7.2 inches across 21.9 storm-fed days, while July bottoms out at 0.3 inches over just 4.2 rainy days. That groups Oak Grove with places like Jennings Lodge, OR, Oatfield, OR and Milwaukie, OR on the same cool-season storm track.
Once Oak Grove passes late-May, overnight freezes fade and peas, lettuce, spinach, and radishes can be sown. Heat-demanding starts go out a fortnight on in Oak Grove, after the soil warms and cold snaps clear. The season ends by early-October in Oak Grove, once hard frosts set back in. Oak Grove's low ground holds frost later into spring than Oak Grove's benches, which run 3-5 days ahead.
Similar climates: Jennings Lodge, OR, Oatfield, OR, Milwaukie, OR, Dunthorpe, OR, Johnson City, OR.
Frequently asked
- When does it freeze in Oak Grove?
- In Oak Grove, expect the last spring frost near mid-May; Oak Grove's first autumn frost comes around mid-October.
- What is the rainy season in Oak Grove?
- Rainfall in Oak Grove peaks in December near 7.2 inches, out of about 50 inches annually.
- What is the warmest month in Oak Grove?
- Oak Grove peaks in August, when the mean runs near 69°F.
- What is the coldest month in Oak Grove?
- January is Oak Grove's coldest month, averaging about 39°F.
- When can I start a vegetable garden in Oak Grove?
- Hardy spring crops go in near mid-May in Oak Grove; tender peppers and squash wait 10–14 days.
- How many rainy days does Oak Grove get?
- Oak Grove records around 192 days of measurable precipitation annually.
- What hardiness zone is Oak Grove?
- Since January in Oak Grove averages 39°F, Oak Grove's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Oak Grove?
- Oak Grove's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Oak Grove?
- See this week's day-by-day rain chances for Oak Grove in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Oak Grove?
- Current conditions for Oak Grove and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Oak Grove forecast updated?
- The Oak Grove forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Oak Grove?
- Today's sunrise and sunset times for Oak Grove are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Oak Grove?
- The next few days in Oak Grove's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The warm-summer Mediterranean climate of Oak Grove, Oregon carries typical Januarys near 39°F and Julys around 68°F — 29°F of seasonal travel.
Across the year, Oak Grove collects about 50 inches of precipitation over roughly 192 days with measurable rain or snow.
Oak Grove sits at 45.4°N; that 29°F seasonal swing frames planting windows and frost dates across Oak Grove.
ZIP codes in Oak Grove
- 97222
- 97267
- 97268