Norwalk, CT Weather & Growing Conditions
Today
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 65 in the afternoon. Southwest wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Sunny | 5 to 8 mph SW | 0% |
| Tonight | 57°F | Partly Cloudy | 5 mph S | 0% |
| Thursday | 70°F | Mostly Cloudy | 5 to 10 mph S | 12% |
| Thursday Night | 59°F | Rain Showers Likely | 3 to 8 mph S | 69% |
| Friday | 68°F | Rain Showers | 5 mph S | 89% |
| Friday Night | 52°F | Rain Showers | 3 mph N | 75% |
| Saturday | 64°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph NW | 15% |
| Saturday Night | 42°F | Slight Chance Light Rain | 10 mph W | 24% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 10 mph W | 15% |
| Sunday Night | 39°F | Partly Cloudy | 9 mph W | 3% |
| Monday | 57°F | Sunny | 10 to 15 mph W | 12% |
| Monday Night | 37°F | Mostly Clear | 8 to 12 mph W | 12% |
| Tuesday | 60°F | Sunny | 10 to 14 mph SW | 4% |
| Tuesday Night | 38°F | Mostly Clear | 10 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Norwalk, CT
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
7a
Explore more for Norwalk, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Stamford 5 N, Ct (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.