Niantic, Connecticut Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Niantic weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain26%0.50″95°75°—
- SundayJul 5Light Drizzle44%0.04″78°70°-17°
- MondayJul 6Heavy Showers73%3.5″68°62°-10°
- TuesdayJul 7Showers68%1.3″63°58°-5°
- WednesdayJul 8Mostly Clear13%—83°57°+20°
- ThursdayJul 9Partly Cloudy11%—83°63°0°
- FridayJul 10Light Drizzle28%—86°68°+3°
AQI 52 (Moderate), driven by PM2.5. AQI down 27 over the last 6 hours — air quality is improving sharply. PM2.5 at 9.5 µg/m³ (AQI 52) with a 0.93 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 6 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 2.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 37
- UV peak
- 2.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 9.5 µg/m³ (AQI 52) with a 0.93 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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
- 10:44 PM
- Moonset
- 9:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Niantic at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 06357
16-Day Forecast — Niantic
- Sat95°75°26%
- Sun78°70°44%
- Mon68°62°73%
- Tue63°58°68%
- Wed83°57°13%
- Thu83°63°11%
- Fri86°68°28%
- Sat73°66°23%
- Sun75°63°24%
- Mon67°63°19%
- Tue72°63°17%
- Wed82°61°27%
- Thu90°68°30%
- Fri92°71°31%
- Sat84°71°35%
- Sun84°64°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 — Niantic
SPC includes Niantic 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 Niantic
- 06357