Exeter, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Exeter, a village in Scott County, Illinois.
Today
88°F
Mostly Sunny
Mostly sunny, with a high near 88. South wind around 6 mph.
7-day forecast for Exeter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny | 6 mph S | 0% |
| Tonight | 69°F | Partly Cloudy | 6 mph SSE | 2% |
| Wednesday | 88°F | Chance Showers And Thunderstorms | 6 mph S | 33% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 6 mph E | 78% |
| Thursday | 84°F | Showers And Thunderstorms | 5 mph SSW | 78% |
| Thursday Night | 65°F | Partly Cloudy | 2 mph SE | 14% |
| Friday | 85°F | Partly Sunny | 1 mph SSW | 8% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 2 mph S | 26% |
| Saturday | 88°F | Chance Showers And Thunderstorms then Sunny | 2 to 6 mph SSW | 26% |
| Saturday Night | 71°F | Mostly Clear | 3 to 8 mph SSW | 6% |
| Sunday | 91°F | Sunny | 8 to 12 mph SSW | 3% |
| Sunday Night | 72°F | Mostly Clear | 7 to 10 mph SSW | 11% |
| Monday | 91°F | Mostly Sunny | 7 to 10 mph SSW | 11% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 9 mph SSW | 24% |
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 Aug 4, 2026.