Omaha, IL Weather & Growing Conditions
Today
87°F
Sunny
Sunny. High near 87, with temperatures falling to around 85 in the afternoon. East northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 3 mph ENE | 0% |
| Tonight | 62°F | Mostly Clear | 3 mph ESE | 0% |
| Wednesday | 89°F | Sunny | 0 to 3 mph S | 0% |
| Wednesday Night | 68°F | Mostly Clear | 3 mph SSE | 0% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph SSW | 18% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 3 mph S | 46% |
| Friday | 88°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 50% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 5 mph SW | 46% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 5 mph SW | 46% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 mph SSW | 15% |
| Sunday | 91°F | Sunny | 3 to 8 mph SSW | 12% |
| Sunday Night | 73°F | Mostly Clear | 7 mph SSW | 11% |
| Monday | 94°F | Sunny | 7 to 12 mph SSW | 6% |
| Monday Night | 75°F | Mostly Clear | 10 mph SSW | 8% |
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 Aug 4, 2026.