Thompsonville, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompsonville, a community in Hartford County, Connecticut.
Today
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 68 in the afternoon. South wind 6 to 12 mph.
7-day forecast for Thompsonville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Sunny | 6 to 12 mph S | 2% |
| Tonight | 56°F | Mostly Cloudy | 6 to 9 mph S | 2% |
| Thursday | 72°F | Patchy Fog then Chance Light Rain | 7 to 13 mph S | 25% |
| Thursday Night | 60°F | Light Rain Likely | 5 to 10 mph S | 68% |
| Friday | 70°F | Light Rain | 3 mph S | 82% |
| Friday Night | 54°F | Light Rain | 3 mph NE | 81% |
| Saturday | 65°F | Chance Light Rain | 7 mph NW | 32% |
| Saturday Night | 43°F | Chance Light Rain | 8 mph NW | 27% |
| Sunday | 58°F | Slight Chance Light Rain then Mostly Sunny | 6 to 10 mph NW | 19% |
| Sunday Night | 36°F | Partly Cloudy | 6 mph W | 7% |
| Monday | 55°F | Mostly Sunny | 6 to 15 mph W | 14% |
| Monday Night | 34°F | Partly Cloudy | 7 mph W | 11% |
| Tuesday | 59°F | Mostly Sunny | 6 to 12 mph SW | 5% |
| Tuesday Night | 33°F | Mostly Clear | 7 mph W | 4% |
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
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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 Nov 4, 2026.