Higganum, Connecticut Weather
Honeysuckle sweetens the night. Day 90 of spring. Read this microseason across nine climate regions →
Higganum weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Overcast——76°56°—
- ThursdayJun 18Light Drizzle24%0.03″82°62°+6°
- FridayJun 19Overcast——84°66°+2°
- SaturdayJun 20Overcast——81°60°-3°
- SundayJun 21Overcast10%—77°54°-4°
- MondayJun 22Light Showers68%0.78″79°59°+2°
- TuesdayJun 23Partly Cloudy48%—84°54°+5°
AQI 46 (Good), driven by Ozone. AQI up 13 over the last 6 hours (gradual rise). Ozone at AQI 81 now. With UV 6.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 68 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 81 now. With UV 6.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 68 around 1 PM.
- Present
- AQI 81
- UV peak
- 6.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 68
PM × Wind × Precip
PM2.5 at 12.7 µg/m³, PM10 at 16.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.77
- 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).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 7:42 AM
- Moonset
- 10:31 PM
- In sign
- ♌︎ Leo
Honeysuckle sweetens the night
Higganum at a glance
- Today vs. normal: 76°F — typical for the season
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Higganum
- Wed76°56°2%
- Thu82°62°24%
- Fri84°66°3%
- Sat81°60°3%
- Sun77°54°10%
- Mon79°59°68%
- Tue84°54°48%
- Wed84°60°7%
- Thu68°60°16%
- Fri83°58°26%
- Sat78°58°29%
- Sun70°62°24%
- Mon68°60°29%
- Tue83°66°44%
- Wed86°61°44%
- Thu78°65°35%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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 has placed Higganum in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWSLGTSlight Risk
- DAY 3NONENo severe risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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