Niantic, CT Weather & Growing Conditions
This Afternoon
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 65 in the afternoon. Southwest wind 6 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 6 to 9 mph SW | 1% |
| Tonight | 57°F | Mostly Cloudy | 5 mph SW | 3% |
| Thursday | 72°F | Slight Chance Light Rain | 5 to 12 mph SW | 16% |
| Thursday Night | 61°F | Light Rain Likely | 3 to 8 mph SW | 74% |
| Friday | 70°F | Rain | 5 mph S | 76% |
| Friday Night | 55°F | Light Rain Likely | 1 mph W | 73% |
| Saturday | 67°F | Chance Light Rain | 2 to 6 mph W | 31% |
| Saturday Night | 43°F | Chance Light Rain | 5 to 9 mph W | 30% |
| Sunday | 60°F | Chance Light Rain | 8 to 12 mph NW | 30% |
| Sunday Night | 39°F | Partly Cloudy | 5 to 8 mph W | 3% |
| Monday | 58°F | Sunny | 7 to 15 mph W | 8% |
| Monday Night | 37°F | Mostly Clear | 7 mph W | 7% |
| Tuesday | 61°F | Sunny | 8 to 12 mph W | 1% |
| Tuesday Night | 36°F | Mostly Clear | 7 mph W | 1% |
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 (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.