Grand Coulee, Washington Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Grand Coulee weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——77°53°—
- FridayJun 5Overcast——69°51°-8°
- SaturdayJun 6Overcast19%—65°43°-4°
- SundayJun 7Overcast——67°39°+2°
- MondayJun 8Overcast12%—74°44°+7°
- TuesdayJun 9Overcast27%—76°55°+2°
- WednesdayJun 10Clear29%—82°53°+6°
Ozone at AQI 41 now. AQI flat over the last 6 hours (within ±4 points). With UV 7.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 41 by mid-afternoon.
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 41 now. With UV 7.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 41 by mid-afternoon.
- Present
- AQI 41
- UV peak
- 7.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 41
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:57 AM
- Moonset
- 3:34 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Grand Coulee at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: June 3 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 4, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.