Grass Valley, Oregon Weather
Fireweed Ignites. Day 14 of summer. Read this microseason across nine climate regions →
Grass Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear——79°53°—
- SundayJul 5Overcast——84°55°+5°
- MondayJul 6Overcast——89°60°+5°
- TuesdayJul 7Overcast——86°62°-3°
- WednesdayJul 8Mostly Clear——76°57°-10°
- ThursdayJul 9Clear——81°52°+5°
- FridayJul 10Partly Cloudy——84°56°+3°
AQI 21 (Good), driven by Ozone. AQI down 12 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 4.9 µg/m³ (AQI 27) with a 0.86 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:07 PM
- Moonset
- 10:08 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Grass Valley at a glance
- Today vs. normal: 66°F — typical for the season
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 97029
16-Day Forecast — Grass Valley
- Sat79°53°0%
- Sun84°55°0%
- Mon89°60°2%
- Tue86°62°1%
- Wed76°57°0%
- Thu81°52°0%
- Fri84°56°0%
- Sat85°62°1%
- Sun78°58°1%
- Mon75°50°3%
- Tue87°52°3%
- Wed96°63°3%
- Thu100°70°3%
- Fri101°74°6%
- Sat99°72°5%
- Sun98°69°6%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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.
ZIP codes in Grass Valley
- 97029