Bethany, Oregon Weather
Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →
Bethany weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——80°53°—
- MondayJul 6Overcast——86°58°+6°
- TuesdayJul 7Overcast——85°57°-1°
- WednesdayJul 8Overcast——78°60°-7°
- ThursdayJul 9Overcast——83°53°+5°
- FridayJul 10Overcast——83°56°0°
- SaturdayJul 11Overcast——80°58°-3°
AQI 17 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 11:35 PM
- Moonset
- 11:28 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Bethany at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: May 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Bethany
- Sun80°53°0%
- Mon86°58°0%
- Tue85°57°0%
- Wed78°60°0%
- Thu83°53°0%
- Fri83°56°0%
- Sat80°58°3%
- Sun85°56°1%
- Mon90°61°2%
- Tue93°64°1%
- Wed90°61°0%
- Thu92°64°4%
- Fri94°64°0%
- Sat91°63°0%
- Sun86°61°0%
- Mon83°55°3%
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.
Microseason · July 1–5
Fireweed Ignites
Magenta fireweed spires surge from burned and cleared slopes, their blooms climbing from base upward. July's signature color claims the disturbed ground.
Day 186 of 365 · Wedge 37 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
Bethany's warmest month is August (~69°F mean) and its coldest is January (~39°F). Rainfall peaks in December (7.2 inches) and bottoms out in July (0.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 39° | 7.2″ | 23 |
| February | 41° | 5.5″ | 19 |
| March | 44° | 5.9″ | 22 |
| April | 50° | 3.9″ | 19 |
| May | 56° | 2.7″ | 17 |
| June | 62° | 1.7″ | 13 |
| July | 68° | 0.3″ | 4 |
| August | 69° | 0.5″ | 5 |
| September | 63° | 1.9″ | 10 |
| October | 53° | 5.7″ | 17 |
| November | 45° | 7.1″ | 21 |
| December | 39° | 7.2″ | 22 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Bethany sees 39°F Januarys and 68°F Julys, a 29°F range, plus around 49.7 inches of precipitation across 192 days.
Precipitation in Bethany peaks in the cool season: December averages 7.2 inches across 21.9 storm-fed days, while July bottoms out at 0.3 inches over just 4.2 rainy days. That groups Bethany with places like Oak Hills, OR, Rockcreek, OR and Cedar Mill, OR on the same cool-season storm track.
By late-May the frosts ease in Bethany, opening the season for peas, lettuce, spinach, and radishes. Hold Bethany's tender crops — tomatoes, peppers, basil — until 10-14 days past Bethany's last frost. Bethany's window closes around early-October as overnight lows return below freezing. Within Bethany, cold-air pooling chills low spots by 5-10°F, shifting Bethany's local frost dates.
Similar climates: Oak Hills, OR, Rockcreek, OR, Cedar Mill, OR, Marlene Village, OR, Cedar Hills, OR.
Frequently asked
- When does it freeze in Bethany?
- Frost typically leaves Bethany by mid-May and returns to Bethany near mid-October.
- What is the rainy season in Bethany?
- Bethany sees its heaviest rain in December (around 7.2 inches), part of roughly 50 inches a year.
- What is the warmest month in Bethany?
- August is Bethany's warmest month, averaging about 69°F.
- What is the coldest month in Bethany?
- Bethany bottoms out in January, with a mean near 39°F.
- When can I start a vegetable garden in Bethany?
- Time tomatoes in Bethany for two weeks after mid-May; peas and greens start at Bethany's frost line.
- How many rainy days does Bethany get?
- Bethany records around 192 days of measurable precipitation annually.
- What hardiness zone is Bethany?
- Bethany sits in the USDA zone set by January lows near 39°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Bethany?
- Bethany'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 Bethany?
- See this week's day-by-day rain chances for Bethany in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Bethany?
- Current conditions for Bethany and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Bethany forecast updated?
- The Bethany forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Bethany?
- Today's sunrise and sunset times for Bethany 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 Bethany?
- The next few days in Bethany's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Bethany's warm-summer Mediterranean climate in Oregon pairs 39°F Januarys with 68°F Julys, 29°F apart across the seasons.
In a typical year Bethany records about 50 inches of precipitation on around 192 days.
At 45.6°N, Bethany's 29°F summer-to-winter swing sets when Bethany's gardens wake and when frost returns.
ZIP codes in Bethany
- 97229