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Westerly, RI Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Westerly, a community in Washington County, Rhode Island.

Today
67°F
Mostly Sunny
Mostly sunny. High near 67, with temperatures falling to around 61 in the afternoon. Southwest wind 5 to 9 mph.

7-day forecast for Westerly

WhenTempForecastWindPrecip
Today 67°F Mostly Sunny 5 to 9 mph SW 3%
Tonight 52°F Partly Cloudy then Patchy Fog 3 mph SW 5%
Wednesday 69°F Mostly Sunny 3 to 9 mph SW 3%
Wednesday Night 55°F Patchy Fog then Partly Cloudy 6 mph SW 1%
Thursday 70°F Mostly Cloudy then Slight Chance Light Rain 3 to 10 mph SW 16%
Thursday Night 60°F Light Rain Likely 3 to 7 mph SW 59%
Friday 69°F Rain 3 to 8 mph S 78%
Friday Night 53°F Rain 5 mph SW 83%
Saturday 65°F Light Rain Likely 5 to 8 mph N 73%
Saturday Night 43°F Chance Light Rain 6 mph N 39%
Sunday 61°F Slight Chance Light Rain then Mostly Sunny 5 to 8 mph NW 20%
Sunday Night 41°F Partly Cloudy then Slight Chance Light Rain 3 mph NW 15%
Monday 59°F Chance Light Rain 3 to 10 mph NW 35%
Monday Night 39°F Chance Light Rain 7 to 10 mph NW 36%

Forecast source: National Weather Service (api.weather.gov) for Westerly (41.373, -71.807). Updated through the day.

Growing snapshot for Westerly

Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days
Hardiness zone
7a

More local growing data for Westerly: nearby ZIP 02891 weather · frost dates · planting calendar · Rhode Island frost dates

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Climate data from the nearest NOAA station, Westerly State Ap, Ri (0.7 mi from Westerly). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.