Charlestown, RI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charlestown, a community in Washington County, Rhode Island.
This Afternoon
66°F
Partly Sunny
Partly sunny. High near 66, with temperatures falling to around 58 in the afternoon. Southwest wind 7 to 10 mph.
7-day forecast for Charlestown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Partly Sunny | 7 to 10 mph SW | 2% |
| Tonight | 53°F | Partly Cloudy | 7 mph SW | 3% |
| Wednesday | 67°F | Sunny | 6 to 12 mph SW | 4% |
| Wednesday Night | 55°F | Patchy Fog then Partly Cloudy | 8 mph SW | 2% |
| Thursday | 68°F | Mostly Cloudy | 7 to 13 mph SW | 14% |
| Thursday Night | 61°F | Light Rain | 10 mph SW | 78% |
| Friday | 66°F | Rain | 10 mph SW | 93% |
| Friday Night | 56°F | Rain | 6 mph SW | 92% |
| Saturday | 64°F | Light Rain Likely | 7 to 10 mph NW | 73% |
| Saturday Night | 44°F | Chance Light Rain | 8 mph NW | 36% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 10 mph W | 21% |
| Sunday Night | 40°F | Partly Cloudy | 8 mph W | 7% |
| Monday | 58°F | Slight Chance Light Rain | 9 to 15 mph NW | 23% |
| Monday Night | 39°F | Slight Chance Light Rain then Partly Cloudy | 12 mph NW | 22% |
Forecast source: National Weather Service (api.weather.gov) for Charlestown (41.378, -71.627). Updated through the day.
Growing snapshot for Charlestown
Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days
Hardiness zone
7a
More local growing data for Charlestown: nearby ZIP 02813 weather · frost dates · planting calendar · Rhode Island frost dates
Nearby towns & communities
Ashaway
Bradford
Carolina
Hope Valley
Hopkinton
Kingston
Narragansett Pier
Quonochontaug
Wakefield-Peace Dale
Weekapaug
Westerly
Wyoming
Climate data from the nearest NOAA station, Westerly State Ap, Ri (7.4 mi from Charlestown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.