Eugene, Oregon Weather
August Arrives Dimmed. Day 43 of summer. Read this microseason across nine climate regions →
Eugene weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Clear——76°49°—
- MondayAug 3Clear——87°52°+11°
- TuesdayAug 4Overcast——97°55°+10°
- WednesdayAug 5Overcast——101°60°+4°
- ThursdayAug 6Clear——102°61°+1°
- FridayAug 7Clear——93°56°-9°
- SaturdayAug 8Clear——90°59°-3°
AQI 21 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 4.7 µg/m³ (AQI 26) with a 0.70 fine-to-coarse ratio and 2 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.
What's driving it
PM × Wind × Precip
PM2.5 at 4.7 µg/m³ (AQI 26) with a 0.70 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.70
- 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).








































Red sky at night, sailor's delight.
- Moonrise
- 9:58 PM
- Moonset
- 10:24 AM
- In sign
- ♓︎ Pisces
August Arrives Dimmed
Eugene at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 10 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 97401, 97402, 97403, 97404, 97405, 97408
16-Day Forecast — Eugene
- Sun76°49°0%
- Mon87°52°0%
- Tue97°55°0%
- Wed101°60°0%
- Thu102°61°0%
- Fri93°56°0%
- Sat90°59°0%
- Sun87°55°0%
- Mon86°54°0%
- Tue90°56°0%
- Wed90°55°1%
- Thu88°55°6%
- Fri92°57°6%
- Sat92°59°3%
- Sun87°57°3%
- Mon87°58°6%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Eugene
Right now in the garden
Peak growing season
As of August 2, 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.
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’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.
Microseason · August 1–5
August Arrives Dimmed
Smoke persists. Nights fall noticeably earlier—sunset shifts 3 minutes earlier than June's solstice. Resinous fir and cedar scent hangs thick.
Day 214 of 365 · Wedge 43 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
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
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 late-May, 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 early-October, freezing nights resume in Eugene and tender crops must come in. In Eugene, low spots run 4-7°F colder than nearby slopes, nudging Eugene's frost dates a week.
Similar climates: River Road, OR, Santa Clara, OR, Coburg, OR, Springfield, OR, Creswell, OR.
Naturalist notes
Late May brings the emergence of western tiger swallowtail butterflies as temperatures warm consistently above 60°F.
Douglas fir trees release their pollen in massive yellow clouds during late April through early May.
Frequently asked
- When does it freeze in Eugene?
- Eugene's last spring frost lands near mid-May, and in Eugene the first fall frost follows around mid-October.
- 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 mid-May 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.
Climate
Eugene's warm-summer Mediterranean climate in Oregon pairs 41°F Januarys with 68°F Julys, 27°F apart across the seasons.
In a typical year Eugene records about 41 inches of precipitation on around 90 days.
At 44.1°N, Eugene's 27°F summer-to-winter swing sets when Eugene's gardens wake and when frost returns.
ZIP codes in Eugene
- 97405
- 97404
- 97401
- 97403
- 97402
- 97440