Putnam, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Putnam, a community in Windham County, Connecticut.
Today
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 65 in the afternoon. Southwest wind 6 to 12 mph.
7-day forecast for Putnam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Sunny | 6 to 12 mph SW | 2% |
| Tonight | 57°F | Partly Cloudy | 7 mph S | 2% |
| Thursday | 74°F | Patchy Fog then Slight Chance Light Rain | 7 to 13 mph SW | 17% |
| Thursday Night | 61°F | Light Rain Likely | 5 to 9 mph SW | 66% |
| Friday | 70°F | Light Rain | 5 mph S | 92% |
| Friday Night | 55°F | Light Rain | 3 mph S | 92% |
| Saturday | 66°F | Chance Light Rain | 3 to 7 mph N | 48% |
| Saturday Night | 42°F | Slight Chance Light Rain | 5 to 8 mph NW | 21% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 6 to 10 mph W | 18% |
| Sunday Night | 35°F | Partly Cloudy | 7 mph W | 6% |
| Monday | 57°F | Mostly Sunny then Slight Chance Light Rain | 7 to 13 mph W | 15% |
| Monday Night | 33°F | Partly Cloudy | 8 mph W | 12% |
| Tuesday | 59°F | Mostly Sunny | 8 to 13 mph SW | 5% |
| Tuesday Night | 32°F | Mostly Clear | 8 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov) for Putnam (41.917, -71.911). Updated through the day.
Growing snapshot for Putnam
Last spring frost
May 1
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
6b
More local growing data for Putnam: nearby ZIP 06260 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Brooklyn
Danielson
Dayville
East Brooklyn
Lake Bungee
Lake Chaffee
Mechanicsville
Moosup
North Grosvenor Dale
Plainfield Village
Quasset Lake
Quinebaug
South Windham
South Woodstock
Wauregan
Willimantic
Witches Woods
Climate data from the nearest NOAA station, W Thompson Lake, Ct (3 mi from Putnam). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.