Corvallis, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Corvallis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——86°50°—
- SundayJul 5Overcast——84°58°-2°
- MondayJul 6Light Rain42%0.15″84°57°0°
- TuesdayJul 7Overcast42%—91°56°+7°
- WednesdayJul 8Light Drizzle10%—89°57°-2°
- ThursdayJul 9Clear——87°52°-2°
- FridayJul 10Clear——95°55°+8°
AQI 41 (Good), driven by Ozone. AQI up 16 in the last 6 hours — air quality is degrading. Ozone at AQI 45 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 45 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 45
- UV peak
- 1.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 45
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
- 12:00 AM
- Moonset
- 11:51 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Corvallis at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: May 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59828
16-Day Forecast — Corvallis
- Sat86°50°1%
- Sun84°57°2%
- Mon84°57°42%
- Tue91°56°42%
- Wed89°57°10%
- Thu87°52°3%
- Fri95°55°2%
- Sat102°60°2%
- Sun99°63°5%
- Mon100°63°5%
- Tue107°64°12%
- Wed100°66°12%
- Thu98°62°10%
- Fri101°62°3%
- Sat101°66°9%
- Sun103°65°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 — Corvallis
SPC includes Corvallis in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- 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 Corvallis
- 59828