Delphos, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delphos, a city in Allen County, Ohio.
Overnight
57°F
Mostly Cloudy
Mostly cloudy, with a low around 57. East wind around 5 mph.
7-day forecast for Delphos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Mostly Cloudy | 5 mph E | 2% |
| Saturday | 78°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph SE | 65% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 72% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 15 mph NW | 81% |
| Sunday Night | 55°F | Rain Showers Likely | 10 to 15 mph NE | 62% |
| Monday | 66°F | Chance Rain Showers | 15 mph NE | 50% |
| Monday Night | 51°F | Chance Rain Showers | 15 to 20 mph NE | 45% |
| Tuesday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 15 to 20 mph NE | 18% |
| Tuesday Night | 52°F | Chance Rain Showers | 15 to 20 mph NE | 48% |
| Wednesday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 48% |
| Wednesday Night | 52°F | Chance Rain Showers | 5 to 15 mph NE | 42% |
| Thursday | 68°F | Mostly Cloudy | 5 to 10 mph NE | 11% |
| Thursday Night | 51°F | Mostly Cloudy | 5 to 10 mph NE | 10% |
| Friday | 70°F | Mostly Sunny | 5 to 10 mph NE | 8% |
Forecast source: National Weather Service (api.weather.gov) for Delphos (40.847, -84.336). Updated through the day.
Growing snapshot for Delphos
Last spring frost
Apr 21
First fall frost
Oct 26
Growing season
187 days
Hardiness zone
6a
More local growing data for Delphos: nearby ZIP 45833 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Beaverdam
Bluffton
Cairo
Cridersville
Elida
Fort Shawnee
Gomer
Harrod
Lafayette
Lima
Spencerville
Westminster
Climate data from the nearest NOAA station, Van Wert 1 S, Oh (12 mi from Delphos). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.