Greenhorn, Oregon Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Greenhorn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——77°48°—
- MondayJul 6Overcast13%—68°53°-9°
- TuesdayJul 7Overcast18%—80°50°+12°
- WednesdayJul 8Overcast——70°47°-10°
- ThursdayJul 9Clear——75°44°+5°
- FridayJul 10Clear——78°48°+3°
- SaturdayJul 11Overcast——80°47°+2°
AQI 38 (Good), driven by Ozone. AQI down 7 over the last 6 hours (gradual decline). Ozone at AQI 37. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 37
- UV peak
- 0.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
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
- 11:17 PM
- Moonset
- 11:10 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Greenhorn at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: May 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Greenhorn
- Sun77°49°1%
- Mon68°53°13%
- Tue80°50°18%
- Wed70°47°2%
- Thu75°44°1%
- Fri78°48°1%
- Sat80°47°1%
- Sun81°48°2%
- Mon84°47°4%
- Tue89°60°6%
- Wed87°55°7%
- Thu76°60°10%
- Fri76°53°5%
- Sat81°55°6%
- Sun84°51°6%
- Mon82°52°10%
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.
SPC Convective Outlook
Storm Prediction Center — Greenhorn
SPC includes Greenhorn in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Greenhorn
- 97817
- 97877