Riverside, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riverside, a community in Fairfield County, Connecticut.
This Afternoon
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 66 in the afternoon. South wind around 7 mph.
7-day forecast for Riverside
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 7 mph S | 0% |
| Tonight | 57°F | Partly Cloudy | 6 mph S | 3% |
| Thursday | 71°F | Chance Light Rain | 5 to 10 mph S | 46% |
| Thursday Night | 60°F | Light Rain Likely | 3 to 7 mph SW | 63% |
| Friday | 70°F | Light Rain Likely | 3 mph SW | 63% |
| Friday Night | 50°F | Light Rain Likely | 3 mph NW | 63% |
| Saturday | 66°F | Mostly Sunny | 5 to 8 mph NW | 14% |
| Saturday Night | 43°F | Chance Light Rain | 10 mph NW | 26% |
| Sunday | 60°F | Chance Light Rain then Mostly Sunny | 9 to 13 mph NW | 26% |
| Sunday Night | 40°F | Partly Cloudy | 9 mph W | 0% |
| Monday | 58°F | Sunny | 10 to 14 mph W | 4% |
| Monday Night | 39°F | Mostly Clear | 9 mph W | 4% |
| Tuesday | 63°F | Sunny | 8 to 12 mph W | 2% |
| Tuesday Night | 38°F | Mostly Clear | 6 to 9 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Riverside (41.030, -73.584). Updated through the day.
Growing snapshot for Riverside
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
7b
More local growing data for Riverside: nearby ZIP 06878 weather · frost dates · planting calendar · Connecticut frost dates
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Climate data from the nearest NOAA station, Stamford 5 N, Ct (6.8 mi from Riverside). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.