Alger, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alger, a village in Hardin County, Ohio.
Tonight
62°F
Mostly Cloudy then Chance Rain Showers
A chance of rain showers after 4am. Mostly cloudy, with a low around 62. South wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Alger
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Mostly Cloudy then Chance Rain Showers | 13 to 17 mph S | 42% |
| Wednesday | 67°F | Rain Showers | 17 to 21 mph S | 96% |
| Wednesday Night | 51°F | Rain Showers Likely then Mostly Cloudy | 8 to 16 mph SW | 65% |
| Thursday | 62°F | Mostly Sunny | 10 to 18 mph SW | 1% |
| Thursday Night | 46°F | Mostly Cloudy | 5 to 9 mph SW | 2% |
| Friday | 57°F | Chance Light Rain | 5 to 9 mph NW | 31% |
| Friday Night | 39°F | Slight Chance Light Rain | 8 mph NW | 24% |
| Saturday | 52°F | Slight Chance Light Rain | 9 mph NW | 17% |
| Saturday Night | 35°F | Partly Cloudy | 2 to 6 mph W | 12% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Light Rain | 5 to 12 mph W | 17% |
| Sunday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 7 to 10 mph W | 17% |
| Monday | 57°F | Slight Chance Light Rain | 7 to 13 mph W | 16% |
| Monday Night | 39°F | Slight Chance Light Rain then Mostly Clear | 12 mph SW | 15% |
| Tuesday | 61°F | Mostly Sunny | 10 to 14 mph W | 4% |
Forecast source: National Weather Service (api.weather.gov) for Alger (40.710, -83.844). Updated through the day.
Growing snapshot for Alger
Last spring frost
Apr 22
First fall frost
Oct 24
Growing season
182 days
Hardiness zone
6a
More local growing data for Alger: nearby ZIP 45812 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Kenton, Oh (11.1 mi from Alger). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.