Willimantic, Connecticut Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Willimantic weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain19%0.08″94°76°—
- SundayJul 5Light Drizzle39%0.02″86°70°-8°
- MondayJul 6Showers73%2.6″70°60°-16°
- TuesdayJul 7Heavy Rain73%1.9″61°56°-9°
- WednesdayJul 8Overcast10%—84°55°+23°
- ThursdayJul 9Mostly Clear14%—86°59°+2°
- FridayJul 10Light Drizzle39%—88°65°+2°
AQI 35 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 45 now. With UV 5.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 32 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 45 now. With UV 5.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 32 around 1 PM.
- Present
- AQI 45
- UV peak
- 5.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 32
PM × Wind × Precip
PM2.5 at 7.3 µg/m³, PM10 at 7.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 10:45 PM
- Moonset
- 9:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Willimantic at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 06226
16-Day Forecast — Willimantic
- Sat94°76°19%
- Sun86°70°39%
- Mon70°60°73%
- Tue61°56°73%
- Wed84°55°10%
- Thu86°59°14%
- Fri88°65°39%
- Sat74°66°28%
- Sun73°61°24%
- Mon65°60°18%
- Tue69°61°20%
- Wed86°59°27%
- Thu94°66°30%
- Fri92°69°31%
- Sat87°69°35%
- Sun84°61°40%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Willimantic
SPC includes Willimantic in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- 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.
ZIP codes in Willimantic
- 06256
- 06226