Dayville, Connecticut Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Dayville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast19%—90°75°—
- SundayJul 5Rain37%0.13″85°69°-5°
- MondayJul 6Light Showers68%0.99″71°62°-14°
- TuesdayJul 7Drizzle68%0.20″63°58°-8°
- WednesdayJul 8Overcast10%—77°57°+14°
- ThursdayJul 9Overcast11%—92°62°+15°
- FridayJul 10Light Drizzle41%—88°64°-4°
AQI 44 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (gradual decline). PM2.5 at 8.8 µg/m³ (AQI 49) with a 0.92 fine-to-coarse ratio and 3 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
Ozone × UV × Sky
Ozone at AQI 43. Overcast through the UV peak window (cloud cover ~69%) — afternoon ozone should stay flat.
- Present
- AQI 43
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 8.8 µg/m³ (AQI 49) with a 0.92 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- Wind
- calm
- 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
- 10:44 PM
- Moonset
- 9:48 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Dayville at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 06241
15-Day Forecast — Dayville
- Sat90°75°19%
- Sun85°69°37%
- Mon71°62°68%
- Tue63°58°68%
- Wed77°57°10%
- Thu92°62°11%
- Fri88°64°41%
- Sat85°57°26%
- Sun71°61°22%
- Mon82°65°17%
- Tue93°64°23%
- Wed78°60°29%
- Thu85°58°35%
- Fri89°63°35%
- Sat77°65°42%
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 — Dayville
SPC includes Dayville 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 Dayville
- 06241