Cairo, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cairo, a village 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 Cairo
| 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 20 mph S | 48% |
| Wednesday | 69°F | Rain Showers | 15 to 20 mph S | 99% |
| Wednesday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph SW | 32% |
| 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 | 31% |
| Friday Night | 39°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 17% |
| Saturday | 53°F | Slight Chance Rain Showers | 5 to 10 mph NW | 18% |
| Saturday Night | 34°F | Partly Cloudy | 0 to 5 mph W | 8% |
| Sunday | 55°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph W | 16% |
| Sunday Night | 35°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 10 mph W | 16% |
| Monday | 58°F | Slight Chance Rain Showers | 5 to 15 mph W | 15% |
| Monday Night | 39°F | Mostly Clear | 10 mph SW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Cairo (40.831, -84.084). Updated through the day.
Growing snapshot for Cairo
Last spring frost
Apr 24
First fall frost
Oct 24
Growing season
182 days
More local growing data for Cairo: nearby ZIP 45820 weather · frost dates · planting calendar · Ohio frost dates
Nearby towns & communities
Beaverdam
Bluffton
Cridersville
Delphos
Elida
Fort Shawnee
Gomer
Harrod
Lafayette
Lima
Spencerville
Westminster
Climate data from the nearest NOAA station, Lima Wwtp, Oh (7.7 mi from Cairo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.