Mashantucket, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mashantucket, a community in New London County, Connecticut.
This Afternoon
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 78 in the afternoon. West wind around 6 mph.
7-day forecast for Mashantucket
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Sunny | 6 mph W | 0% |
| Tonight | 50°F | Partly Cloudy | 2 to 8 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 7 to 10 mph E | 0% |
| Saturday Night | 51°F | Mostly Cloudy | 3 to 8 mph E | 0% |
| Sunday | 67°F | Showers And Thunderstorms | 5 to 9 mph SE | 81% |
| Sunday Night | 55°F | Showers And Thunderstorms | 3 to 9 mph SE | 90% |
| Monday | 66°F | Rain Showers Likely | 8 to 12 mph NE | 56% |
| Monday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 23% |
| Tuesday | 63°F | Slight Chance Rain Showers | 13 mph NE | 17% |
| Tuesday Night | 49°F | Mostly Cloudy | 8 to 13 mph NE | 8% |
| Wednesday | 63°F | Partly Sunny then Slight Chance Rain Showers | 14 to 17 mph NE | 15% |
| Wednesday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Thursday | 63°F | Chance Rain Showers | 16 mph NE | 31% |
| Thursday Night | 50°F | Chance Rain Showers | 9 to 14 mph NE | 37% |
Forecast source: National Weather Service (api.weather.gov) for Mashantucket (41.464, -71.975). Updated through the day.
Growing snapshot for Mashantucket
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6b
More local growing data for Mashantucket: nearby ZIP 06338 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Baltic
Colchester
Conning Towers-Nautilus Park
Gales Ferry
Groton
Groton Long Point
Jewett City
Long Hill
Mystic
New London
Niantic
Noank
Norwich
Old Mystic
Oxoboxo River
Pawcatuck
Poquonock Bridge
Stonington
Waterford
Climate data from the nearest NOAA station, Norwich Public Utility Plt, Ct (6.4 mi from Mashantucket). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.