Niantic, CT Weather & Growing Conditions
This Afternoon
68°F
Sunny
Sunny. High near 68, with temperatures falling to around 63 in the afternoon. Southwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Sunny | 9 mph SW | 0% |
| Tonight | 58°F | Partly Cloudy | 7 mph SW | 0% |
| Thursday | 69°F | Mostly Cloudy then Chance Rain Showers | 7 to 13 mph SW | 30% |
| Thursday Night | 61°F | Showers And Thunderstorms | 6 to 10 mph SW | 78% |
| Friday | 67°F | Showers And Thunderstorms | 7 mph S | 98% |
| Friday Night | 57°F | Showers And Thunderstorms | 5 mph SW | 94% |
| Saturday | 65°F | Chance Rain Showers | 5 to 8 mph NW | 28% |
| Saturday Night | 47°F | Slight Chance Light Rain | 9 mph W | 20% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 12 mph W | 20% |
| Sunday Night | 43°F | Partly Cloudy | 9 mph W | 5% |
| Monday | 58°F | Mostly Sunny then Slight Chance Light Rain | 10 to 14 mph W | 19% |
| Monday Night | 42°F | Slight Chance Light Rain then Mostly Clear | 10 mph W | 19% |
| Tuesday | 59°F | Sunny | 10 to 14 mph W | 7% |
| Tuesday Night | 41°F | Mostly Clear | 12 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Niantic, CT
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
194 days
Hardiness zone
7a
Explore more for Niantic, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Groton New London Ap, Ct (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.