Dover, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dover, a village in Bureau County, Illinois.
Today
86°F
Mostly Sunny
Mostly sunny. High near 86, with temperatures falling to around 84 in the afternoon. Southwest wind 5 to 10 mph.
7-day forecast for Dover
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 5 mph S | 50% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph W | 63% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph NE | 86% |
| Thursday | 78°F | Chance Showers And Thunderstorms | 5 mph NE | 58% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 22% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SE | 7% |
| Friday Night | 65°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 84°F | Mostly Sunny | 5 mph SW | 9% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 33% |
| Monday | 85°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 33% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph SW | 38% |
Forecast source: National Weather Service (api.weather.gov) for Dover (41.434, -89.396). Updated through the day.
Growing snapshot for Dover
Last spring frost
Apr 22
First fall frost
Oct 17
Growing season
177 days
More local growing data for Dover: nearby ZIP 61323 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Arlington
Buda
Bureau Junction
Cherry
Dalzell
De Pue
Hollowayville
La Moille
Ladd
Malden
Manlius
Mineral
Neponset
New Bedford
Ohio
Princeton
Seatonville
Sheffield
Spring Valley
Tiskilwa
Walnut
Wyanet
Climate data from the nearest NOAA station, Princeton, Il (5.6 mi from Dover). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.