Effingham, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Effingham, a city in Effingham County, Illinois.
This Afternoon
75°F
Chance Light Rain
A chance of rain after 4pm. Partly sunny, with a high near 75. South southeast wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Effingham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Chance Light Rain | 15 to 18 mph SSE | 28% |
| Tonight | 56°F | Rain | 10 to 15 mph S | 88% |
| Wednesday | 63°F | Slight Chance Light Rain then Mostly Cloudy | 7 to 13 mph SW | 21% |
| Wednesday Night | 44°F | Mostly Cloudy | 5 mph WSW | 0% |
| Thursday | 64°F | Sunny | 5 to 10 mph WSW | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 3 mph WNW | 3% |
| Friday | 57°F | Partly Sunny | 3 to 8 mph NNW | 8% |
| Friday Night | 38°F | Partly Cloudy | 2 to 6 mph NNW | 1% |
| Saturday | 55°F | Mostly Sunny | 5 mph NW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 1 mph WNW | 1% |
| Sunday | 60°F | Sunny | 1 to 7 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 3 mph WNW | 6% |
| Monday | 63°F | Sunny | 1 to 8 mph WSW | 3% |
| Monday Night | 38°F | Mostly Clear | 3 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Effingham (39.120, -88.551). Updated through the day.
Growing snapshot for Effingham
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
191 days
Hardiness zone
6b
More local growing data for Effingham: nearby ZIP 62401 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Effingham 3Sw, Il (3.3 mi from Effingham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.