Mashantucket, CT Weather & Growing Conditions
Today
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 62 in the afternoon. Southwest wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Sunny | 5 to 9 mph SW | 0% |
| Tonight | 56°F | Partly Cloudy | 5 mph S | 0% |
| Thursday | 72°F | Mostly Cloudy then Chance Rain Showers | 5 to 12 mph SW | 36% |
| Thursday Night | 61°F | Showers And Thunderstorms | 8 mph SW | 76% |
| Friday | 69°F | Showers And Thunderstorms | 6 mph S | 98% |
| Friday Night | 55°F | Showers And Thunderstorms | 3 mph S | 95% |
| Saturday | 66°F | Chance Rain Showers | 3 to 7 mph NW | 32% |
| Saturday Night | 43°F | Slight Chance Light Rain | 3 to 7 mph NW | 19% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 6 to 9 mph W | 19% |
| Sunday Night | 37°F | Partly Cloudy | 6 mph W | 4% |
| Monday | 57°F | Sunny then Slight Chance Light Rain | 7 to 12 mph W | 16% |
| Monday Night | 35°F | Slight Chance Light Rain then Mostly Clear | 6 mph W | 16% |
| Tuesday | 59°F | Sunny | 6 to 13 mph W | 7% |
| Tuesday Night | 35°F | Mostly Clear | 7 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mashantucket, CT
Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
6b
Explore more for Mashantucket, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Groton, Ct (6.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.