Arlington Heights, Washington Weather
Rufous Hummingbirds Arrive. Day 77 of spring. Read this microseason across nine climate regions →
Arlington Heights weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle33%—62°52°—
- FridayJun 5Rain64%0.47″57°47°-5°
- SaturdayJun 6Light Showers80%0.02″54°44°-3°
- SundayJun 7Light Drizzle12%—64°44°+10°
- MondayJun 8Overcast55%—69°42°+5°
- TuesdayJun 9Overcast54%—74°47°+5°
- WednesdayJun 10Overcast41%—70°46°-4°
Ozone at AQI 33. AQI down 8 over the last 6 hours (steady decline since this morning). Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 33. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 2.9 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
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
- 7:11 AM
- Moonset
- 3:46 PM
- In sign
- ♒︎ Aquarius
Rufous Hummingbirds Arrive
Arlington Heights at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: June 4 (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
Peak growing season
As of June 4, 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.
SPC Convective Outlook
Storm Prediction Center — Arlington Heights
SPC has placed Arlington Heights in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.