Exeter, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Exeter, a village in Scott County, Illinois.
This Afternoon
71°F
Light Rain
Rain and a chance of thunderstorms. Cloudy. High near 71, with temperatures falling to around 64 in the afternoon. South southeast wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Exeter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Light Rain | 18 mph SSE | 90% |
| Tonight | 52°F | Light Rain Likely | 9 to 16 mph SSW | 70% |
| Wednesday | 59°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph SW | 10% |
| Wednesday Night | 42°F | Mostly Cloudy | 8 mph SW | 0% |
| Thursday | 61°F | Mostly Sunny | 7 to 12 mph WSW | 6% |
| Thursday Night | 41°F | Mostly Cloudy then Slight Chance Light Rain | 6 mph NW | 20% |
| Friday | 56°F | Mostly Cloudy | 6 to 9 mph NNW | 8% |
| Friday Night | 35°F | Mostly Cloudy | 1 to 6 mph N | 2% |
| Saturday | 55°F | Mostly Sunny | 2 mph NW | 1% |
| Saturday Night | 34°F | Mostly Clear | 2 mph W | 1% |
| Sunday | 61°F | Sunny | 2 to 7 mph WNW | 8% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 4% |
| Monday | 65°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Exeter (39.719, -90.496). Updated through the day.
Growing snapshot for Exeter
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
More local growing data for Exeter: nearby ZIP 62621 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Winchester, Il (7.3 mi from Exeter). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.