Harmony, RI Weather & Growing Conditions
Tonight
50°F
Partly Cloudy
Partly cloudy, with a low around 50. Southwest wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Partly Cloudy | 8 mph SW | 3% |
| Wednesday | 72°F | Sunny | 6 to 10 mph SW | 4% |
| Wednesday Night | 56°F | Partly Cloudy | 8 mph SW | 2% |
| Thursday | 72°F | Mostly Cloudy | 8 to 12 mph SW | 13% |
| Thursday Night | 62°F | Light Rain Likely | 9 mph SW | 68% |
| Friday | 68°F | Rain | 7 mph S | 86% |
| Friday Night | 56°F | Rain | 6 mph SW | 86% |
| Saturday | 64°F | Light Rain Likely | 8 mph NW | 71% |
| Saturday Night | 44°F | Chance Light Rain | 7 mph NW | 40% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 5 to 9 mph W | 21% |
| Sunday Night | 38°F | Partly Cloudy | 7 mph W | 8% |
| Monday | 57°F | Slight Chance Light Rain | 8 to 12 mph NW | 18% |
| Monday Night | 37°F | Slight Chance Light Rain then Partly Cloudy | 10 mph W | 18% |
| Tuesday | 57°F | Mostly Sunny | 13 mph SW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harmony, RI
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
176 days
Hardiness zone
6b
Explore more for Harmony, RI: full frost dates · planting calendar · Rhode Island frost dates
Climate data from the nearest NOAA station, N Foster 1 E, Ri (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.