Eugene, Oregon Weather
Fog locks the valleys. Day 93 of summer. Read this microseason across nine climate regions →
Eugene weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 7:18 AM PDT · Open-Meteo
- TodaySep 21Overcast later——77°53°—
- TuesdaySep 22Overcast——69°53°-8°
- WednesdaySep 23Overcast——72°50°+3°
- ThursdaySep 24Rain35%0.44″70°53°-2°
- FridaySep 25Heavy Drizzle46%0.09″65°48°-5°
- SaturdaySep 26Overcast——62°50°-3°
- SundaySep 27Overcast——70°48°+8°
Air quality now AQI 26 · Good
AQI 26 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.72 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 4.8 µg/m³ (AQI 27) with a 0.72 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.72
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- —
- Moonset
- 1:24 AM
- In sign
- ♑︎ Capricorn
Fog locks the valleys
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Eugene at a glance
- Today vs. normal: Today averages 65°F (high 77°F, low 53°F), 4°F above the 61°F normal for Sep 21
- Last frost: April 11 (1991–2020 median, NOAA station 11 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Eugene
- Mon77°53°0%
- Tue69°53°1%
- Wed72°50°0%
- Thu70°53°35%
- Fri65°48°46%
- Sat62°50°3%
- Sun70°48°7%
- Mon62°52°3%
- Tue70°46°6%
- Wed73°47°12%
- Thu72°49°19%
- Fri68°46°24%
- Sat80°44°22%
- Sun75°48°9%
- Mon71°47°6%
- Tue65°45°16%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Eugene
Interactive wind and temperature map centered on Eugene — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 23) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Eugene
Eugene sits in Lane County, where the year’s longest day runs 15h 30m of daylight and its shortest just 8h 53m — a swing of +6h 37m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Portland, the state’s largest city, lies about 105 miles to the NNE. The nearest town Eugene tracks is Salem, roughly 60 miles to the N.
Air quality in Eugene
Air quality in Eugene’s county has held roughly steady since 2020; its cleanest year on record was 2021 (median AQI 44). See the full air-quality history for Eugene.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes | spinach, radishes |
| May | — | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach |
| July | tomatoes, peppers, beans, squash | peas, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
A year in weather
Eugene peaks at about 68°F in August and bottoms near 41°F in December; December brings the heaviest rain (7.2 inches) and July the least (0.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 41° | 6.0″ | 12 |
| February | 43° | 4.7″ | 10 |
| March | 47° | 4.6″ | 11 |
| April | 51° | 3.3″ | 9 |
| May | 56° | 2.5″ | 7 |
| June | 61° | 1.2″ | 4 |
| July | 68° | 0.3″ | 1 |
| August | 68° | 0.4″ | 1 |
| September | 63° | 1.4″ | 3 |
| October | 53° | 3.2″ | 7 |
| November | 46° | 6.0″ | 12 |
| December | 41° | 7.2″ | 13 |
Regional context
Similar climates River Road, OR, Santa Clara, OR, Coburg, OR
By the nearest station's NOAA NCEI 1991-2020 normals, Eugene sees 41°F Januarys and 68°F Julys, a 26°F range, plus around 40.8 inches of precipitation across 90 days.
Eugene's moisture rides winter storm tracks: December brings 7.2 inches over 12.9 wet days, while July sees only 0.3 inches across 0.8 days in the dry warm season. It is a winter-storm rhythm Eugene shares with places like River Road, OR, Santa Clara, OR and Coburg, OR.
Eugene's growing window opens around April 11, once Eugene's overnight lows stop freezing — sow peas, lettuce, spinach, and radishes. Hold Eugene's tender crops — tomatoes, peppers, basil — until 10-14 days past Eugene's last frost. Around October 23, freezing nights resume in Eugene and tender crops must come in. In about half of years, Eugene's last freeze comes after April 11.
Similar climates: River Road, OR, Santa Clara, OR, Coburg, OR, Springfield, OR, Creswell, OR.
Frequently asked
- When does it freeze in Eugene?
- Eugene's last spring frost lands near April 11, and in Eugene the first fall frost follows around October 23.
- What is the rainy season in Eugene?
- Rainfall in Eugene peaks in December near 7.2 inches, out of about 41 inches annually.
- What is the warmest month in Eugene?
- August is Eugene's warmest month, averaging about 68°F.
- What is the coldest month in Eugene?
- Eugene bottoms out in December, with a mean near 41°F.
- When can I start a vegetable garden in Eugene?
- Frost-hardy sowings begin at April 11 in Eugene; warm-season starts follow two weeks on.
- How many rainy days does Eugene get?
- Eugene records around 90 days of measurable precipitation annually.
- What hardiness zone is Eugene?
- Eugene's USDA zone comes from its December mean (41°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Eugene?
- Eugene'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 Eugene?
- See this week's day-by-day rain chances for Eugene in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Eugene?
- Current conditions for Eugene and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Eugene forecast updated?
- The Eugene forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Eugene?
- Today's sunrise and sunset times for Eugene 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 Eugene?
- The next few days in Eugene's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Eugene sits at 44.1°N; its climate zone is warm-summer Mediterranean (Köppen approximation).
ZIP codes in Eugene
- 97401
- 97402
- 97403
- 97404
- 97405
- 97408
- 97440