Exeter, IL Weather & Growing Conditions
Tonight
52°F
Light Rain Likely
Rain likely before 2am, then a chance of rain showers and a slight chance of rain between 2am and 3am. Mostly cloudy, with a low around 52. Southwest wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Light Rain Likely | 12 mph SW | 57% |
| Wednesday | 59°F | Mostly Cloudy | 10 to 15 mph WSW | 10% |
| Wednesday Night | 43°F | Mostly Cloudy | 8 mph SW | 0% |
| Thursday | 61°F | Mostly Sunny | 7 to 12 mph WSW | 6% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 6 mph NW | 20% |
| Friday | 56°F | Partly Sunny | 6 to 9 mph NNW | 8% |
| Friday Night | 36°F | Mostly Cloudy | 0 to 6 mph N | 2% |
| Saturday | 55°F | Mostly Sunny | 2 mph NW | 1% |
| Saturday Night | 35°F | Mostly Clear | 2 mph W | 1% |
| Sunday | 61°F | Sunny | 2 to 7 mph WNW | 8% |
| Sunday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Monday | 65°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 40°F | Mostly Clear | 5 mph WSW | 1% |
| Tuesday | 67°F | Sunny | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Exeter, IL
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
Explore more for Exeter, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Winchester, Il (7.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.