Thompsonville, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompsonville, a community in Hartford County, Connecticut.
Today
68°F
Mostly Sunny
Mostly sunny, with a high near 68. East wind around 5 mph.
7-day forecast for Thompsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Mostly Sunny | 5 mph E | 0% |
| Tonight | 49°F | Mostly Cloudy | 3 mph SE | 1% |
| Sunday | 63°F | Rain Showers | 2 to 7 mph SE | 86% |
| Sunday Night | 51°F | Rain Showers | 5 to 13 mph NE | 79% |
| Monday | 67°F | Partly Sunny | 8 to 13 mph N | 6% |
| Monday Night | 46°F | Mostly Cloudy | 5 to 8 mph N | 3% |
| Tuesday | 63°F | Mostly Cloudy | 10 mph NE | 3% |
| Tuesday Night | 45°F | Mostly Cloudy | 6 to 10 mph NE | 3% |
| Wednesday | 65°F | Partly Sunny | 10 to 15 mph NE | 4% |
| Wednesday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 14 mph NE | 23% |
| Thursday | 63°F | Chance Rain Showers | 14 to 18 mph NE | 31% |
| Thursday Night | 46°F | Chance Rain Showers | 17 mph N | 34% |
| Friday | 64°F | Chance Rain Showers | 15 to 18 mph N | 33% |
| Friday Night | 47°F | Chance Rain Showers | 17 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov) for Thompsonville (41.992, -72.597). Updated through the day.
Growing snapshot for Thompsonville
Last spring frost
Apr 21
First fall frost
Oct 16
Growing season
177 days
Hardiness zone
6b
More local growing data for Thompsonville: nearby ZIP 06082 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Hartford Bradley Intl Ap, Ct (7.3 mi from Thompsonville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.