Old Hill, Connecticut Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Old Hill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle33%—97°76°—
- SundayJul 5Heavy Rain76%0.53″86°72°-11°
- MondayJul 6Showers87%0.95″71°66°-15°
- TuesdayJul 7Light Showers67%0.03″66°60°-5°
- WednesdayJul 8Overcast12%—83°56°+17°
- ThursdayJul 9Partly Cloudy15%—92°66°+9°
- FridayJul 10Light Drizzle37%—88°67°-4°
AQI 34 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (gradual decline). PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.92 fine-to-coarse ratio and 6 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 during the projected peak around 5 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 39 now. With UV 2.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 39
- UV peak
- 2.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 8.9 µg/m³ (AQI 49) with a 0.92 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 10:49 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Old Hill at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — Old Hill
- Sat97°75°33%
- Sun86°72°76%
- Mon71°66°87%
- Tue66°60°67%
- Wed83°56°12%
- Thu92°66°15%
- Fri88°67°37%
- Sat81°63°27%
- Sun76°67°29%
- Mon85°63°20%
- Tue93°69°20%
- Wed79°65°23%
- Thu86°60°27%
- Fri87°66°43%
- Sat77°68°43%
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 — Old Hill
SPC has placed Old Hill in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Old Hill
- 06880