Jasper, Oregon Weather
Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →
Jasper weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——85°53°—
- MondayJul 6Overcast——87°59°+2°
- TuesdayJul 7Overcast——84°49°-3°
- WednesdayJul 8Overcast——80°48°-4°
- ThursdayJul 9Partly Cloudy——82°50°+2°
- FridayJul 10Clear——83°48°+1°
- SaturdayJul 11Overcast——82°51°-1°
AQI 24 (Good), driven by PM2.5. AQI down 11 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
- 11:29 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Jasper at a glance
- Today vs. normal: 14°F below the seasonal normal for this latitude
- Last frost: May 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Jasper
- Sun85°53°0%
- Mon87°59°1%
- Tue84°49°0%
- Wed80°48°0%
- Thu82°50°0%
- Fri83°48°0%
- Sat82°51°2%
- Sun85°46°2%
- Mon89°53°2%
- Tue92°56°1%
- Wed90°56°1%
- Thu92°60°6%
- Fri93°57°3%
- Sat91°58°3%
- Sun88°53°3%
- Mon85°50°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
August is Jasper's warmest stretch (~68°F) and December its coldest (~41°F); precipitation crests in December at 7.2 inches and ebbs in July to 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 |
Frequently asked
- When does it freeze in Jasper?
- In Jasper, expect the last spring frost near mid-May; Jasper's first autumn frost comes around mid-October.
- What is the rainy season in Jasper?
- Jasper sees its heaviest rain in December (around 7.2 inches), part of roughly 41 inches a year.
- What is the warmest month in Jasper?
- The warmest stretch in Jasper comes in August, around 68°F on average.
- What is the coldest month in Jasper?
- On average December is the chilliest month in Jasper, about 41°F.
- When can I start a vegetable garden in Jasper?
- Frost-hardy sowings begin at mid-May in Jasper; warm-season starts follow two weeks on.
- How many rainy days does Jasper get?
- Expect roughly 90 wet days a year in Jasper.
- What hardiness zone is Jasper?
- Jasper sits in the USDA zone set by December lows near 41°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Jasper?
- Jasper'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 Jasper?
- See this week's day-by-day rain chances for Jasper in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Jasper?
- Current conditions for Jasper and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Jasper forecast updated?
- The Jasper forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Jasper?
- Today's sunrise and sunset times for Jasper 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 Jasper?
- The next few days in Jasper's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Jasper's warm-summer Mediterranean climate in Oregon pairs 41°F Januarys with 68°F Julys, 27°F apart across the seasons.
Jasper sees close to 41 inches of precipitation annually, falling across some 90 wet days.
Latitude 44.0°N gives Jasper its 27°F swing, and with it the rhythm of Jasper's growing season.
ZIP codes in Jasper
- 97478
- 97455