Richwood, OH Weather & Growing Conditions
Tonight
60°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 4am. Mostly cloudy, with a low around 60. South wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 15 mph S | 20% |
| Wednesday | 66°F | Showers And Thunderstorms | 15 to 18 mph S | 98% |
| Wednesday Night | 50°F | Rain Showers then Mostly Cloudy | 6 to 16 mph SW | 78% |
| Thursday | 63°F | Mostly Sunny | 6 to 14 mph SW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 2 to 7 mph SW | 1% |
| Friday | 58°F | Partly Sunny then Slight Chance Light Rain | 2 to 8 mph W | 17% |
| Friday Night | 39°F | Slight Chance Light Rain | 7 mph NW | 19% |
| Saturday | 53°F | Slight Chance Light Rain | 9 mph NW | 19% |
| Saturday Night | 34°F | Slight Chance Light Rain then Partly Cloudy | 5 mph W | 19% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Light Rain | 3 to 9 mph W | 17% |
| Sunday Night | 34°F | Slight Chance Light Rain then Partly Cloudy | 8 mph W | 17% |
| Monday | 57°F | Slight Chance Light Rain | 7 to 12 mph W | 18% |
| Monday Night | 37°F | Slight Chance Light Rain then Partly Cloudy | 10 mph SW | 18% |
| Tuesday | 61°F | Mostly Sunny | 12 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Richwood, OH
Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
188 days
Hardiness zone
6a
Explore more for Richwood, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Marysville, Oh (16.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.