Higganum, Connecticut Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Higganum weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle39%0.04″96°77°—
- SundayJul 5Overcast45%—86°72°-10°
- MondayJul 6Heavy Rain74%3.9″71°62°-15°
- TuesdayJul 7Showers72%1.7″62°58°-9°
- WednesdayJul 8Overcast10%—84°50°+22°
- ThursdayJul 9Partly Cloudy14%—85°61°+1°
- FridayJul 10Light Drizzle37%—89°66°+4°
AQI 35 (Good), driven by Ozone. 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 7 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 (AQI 41) with a 0.94 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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
- 10:46 PM
- Moonset
- 9:51 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Higganum at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 06441
16-Day Forecast — Higganum
- Sat96°77°39%
- Sun86°72°45%
- Mon71°62°74%
- Tue62°58°72%
- Wed84°50°10%
- Thu85°61°14%
- Fri89°66°37%
- Sat75°67°28%
- Sun73°63°26%
- Mon67°62°19%
- Tue71°62°18%
- Wed86°60°33%
- Thu94°68°35%
- Fri93°70°33%
- Sat85°70°27%
- Sun85°63°23%
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 — Higganum
SPC includes Higganum 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 Higganum
- 06438
- 06441