Riverside, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riverside, a community in Fairfield County, Connecticut.
This Afternoon
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 78 in the afternoon. Northwest wind around 12 mph.
7-day forecast for Riverside
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Sunny | 12 mph NW | 0% |
| Tonight | 53°F | Partly Cloudy | 6 to 9 mph N | 0% |
| Saturday | 70°F | Mostly Sunny | 5 to 8 mph NE | 0% |
| Saturday Night | 57°F | Partly Cloudy then Slight Chance Rain Showers | 6 mph SE | 16% |
| Sunday | 69°F | Rain Showers | 6 to 9 mph SE | 87% |
| Sunday Night | 59°F | Rain Showers | 7 to 10 mph NW | 87% |
| Monday | 68°F | Chance Rain Showers | 12 mph NE | 44% |
| Monday Night | 54°F | Chance Rain Showers | 9 to 14 mph NE | 48% |
| Tuesday | 64°F | Chance Rain Showers | 16 mph NE | 48% |
| Tuesday Night | 52°F | Chance Rain Showers | 17 mph NE | 37% |
| Wednesday | 65°F | Chance Rain Showers | 15 to 20 mph NE | 30% |
| Wednesday Night | 52°F | Chance Rain Showers | 15 to 20 mph NE | 35% |
| Thursday | 66°F | Chance Rain Showers | 16 mph NE | 35% |
| Thursday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
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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Candlewood Lake Club
Candlewood Orchards
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Chimney Point
Coleytown
Compo
Cos Cob
Danbury
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Darien Downtown
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Fairfield University
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Greenwich
Hawleyville
Indian Field
Inglenook
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 Sep 18, 2026.