Delphos, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delphos, a city in Allen County, Ohio.
This Afternoon
75°F
Sunny
Sunny, with a high near 75. South wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Delphos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Sunny | 15 mph S | 2% |
| Tonight | 63°F | Mostly Cloudy then Chance Rain Showers | 10 to 15 mph S | 43% |
| Wednesday | 70°F | Rain Showers | 15 to 20 mph S | 90% |
| Wednesday Night | 50°F | Mostly Cloudy | 10 mph SW | 11% |
| Thursday | 63°F | Mostly Sunny | 10 to 15 mph SW | 2% |
| Thursday Night | 46°F | Mostly Cloudy | 5 to 10 mph SW | 2% |
| Friday | 57°F | Chance Rain Showers | 5 to 10 mph NW | 30% |
| Friday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 15% |
| Saturday | 54°F | Slight Chance Rain Showers | 5 to 10 mph NW | 18% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 6% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph W | 15% |
| Sunday Night | 35°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph W | 15% |
| Monday | 59°F | Mostly Sunny | 5 to 10 mph W | 14% |
| Monday Night | 38°F | Mostly Clear | 10 mph SW | 12% |
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 Nov 3, 2026.