Hartford, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartford, a city in Hartford County, Connecticut.
This Afternoon
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 69 in the afternoon. South wind around 10 mph.
7-day forecast for Hartford
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Sunny | 10 mph S | 1% |
| Tonight | 57°F | Partly Cloudy | 5 to 8 mph S | 2% |
| Thursday | 72°F | Chance Light Rain | 6 to 13 mph S | 45% |
| Thursday Night | 62°F | Chance Light Rain | 3 to 10 mph S | 51% |
| Friday | 71°F | Light Rain Likely | 3 mph SW | 57% |
| Friday Night | 53°F | Chance Light Rain | 2 mph NW | 52% |
| Saturday | 66°F | Partly Sunny then Chance Light Rain | 2 to 7 mph NW | 29% |
| Saturday Night | 44°F | Chance Light Rain | 6 to 9 mph NW | 35% |
| Sunday | 59°F | Chance Light Rain then Partly Sunny | 7 to 14 mph NW | 28% |
| Sunday Night | 38°F | Partly Cloudy | 7 mph W | 4% |
| Monday | 57°F | Mostly Sunny | 7 to 17 mph W | 10% |
| Monday Night | 35°F | Mostly Clear | 5 to 8 mph W | 5% |
| Tuesday | 61°F | Sunny | 7 to 13 mph W | 2% |
| Tuesday Night | 35°F | Mostly Clear | 2 to 7 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Hartford (41.766, -72.682). Updated through the day.
Growing snapshot for Hartford
Last spring frost
Apr 17
First fall frost
Oct 26
Growing season
191 days
Hardiness zone
6b
More local growing data for Hartford: nearby ZIP 06103 weather · frost dates · planting calendar · Connecticut frost dates
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Climate data from the nearest NOAA station, Hartford Brainard Fld, Ct (2.3 mi from Hartford). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.