Omaha, IL Weather & Growing Conditions
Overnight
71°F
Partly Cloudy
Partly cloudy. Low around 71, with temperatures rising to around 73 overnight. South southeast wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Partly Cloudy | 1 mph SSE | 4% |
| Saturday | 98°F | Sunny | 1 to 8 mph SW | 3% |
| Saturday Night | 72°F | Mostly Clear | 5 mph SSW | 1% |
| Sunday | 97°F | Sunny | 3 to 8 mph WSW | 7% |
| Sunday Night | 69°F | Partly Cloudy | 5 mph NNE | 11% |
| Monday | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 9 mph NNE | 40% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 6 to 12 mph NNE | 42% |
| Tuesday | 77°F | Chance Showers And Thunderstorms | 8 to 13 mph N | 36% |
| Tuesday Night | 58°F | Mostly Cloudy | 5 to 14 mph N | 8% |
| Wednesday | 76°F | Mostly Sunny | 5 to 9 mph N | 4% |
| Wednesday Night | 57°F | Partly Cloudy | 3 to 9 mph NNE | 3% |
| Thursday | 77°F | Mostly Sunny | 2 to 9 mph N | 3% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 8 mph NNE | 3% |
| Friday | 77°F | Mostly Sunny | 3 to 9 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Omaha, IL
Last spring frost
Apr 15
First fall frost
Oct 19
Growing season
183 days
Hardiness zone
7a
Explore more for Omaha, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Carmi 3, Il (14.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.