Castle Rock, Washington Weather
Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →
Castle Rock weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——79°54°—
- MondayJul 6Partly Cloudy——83°55°+4°
- TuesdayJul 7Light Drizzle——80°48°-3°
- WednesdayJul 8Light Drizzle——73°53°-7°
- ThursdayJul 9Overcast——81°46°+8°
- FridayJul 10Overcast——78°48°-3°
- SaturdayJul 11Overcast——74°51°-4°
AQI 16 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM2.5 at 4.6 µg/m³ (AQI 26) with a 0.81 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm 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 4.6 µg/m³ (AQI 26) with a 0.81 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.81
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:36 PM
- Moonset
- 11:28 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Castle Rock at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: May 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 98611
16-Day Forecast — Castle Rock
- Sun79°54°0%
- Mon83°55°0%
- Tue80°48°1%
- Wed73°53°6%
- Thu81°46°0%
- Fri78°48°1%
- Sat74°51°4%
- Sun80°46°3%
- Mon87°55°2%
- Tue86°57°2%
- Wed88°54°1%
- Thu90°56°10%
- Fri90°55°3%
- Sat88°54°0%
- Sun83°52°0%
- Mon78°47°6%
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.
ZIP codes in Castle Rock
- 98611