Manlius, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Manlius, 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 Manlius
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Tonight | 68°F | Showers And Thunderstorms Likely | 5 mph S | 59% |
| Wednesday | 78°F | Showers And Thunderstorms Likely | 5 mph W | 72% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph NE | 84% |
| Thursday | 78°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 55% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 19% |
| 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 | Sunny | 5 to 10 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 | 69°F | Slight Chance Showers And Thunderstorms | 10 mph S | 34% |
| Monday | 85°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 34% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph SW | 37% |
Forecast source: National Weather Service (api.weather.gov) for Manlius (41.456, -89.669). Updated through the day.
Growing snapshot for Manlius
Last spring frost
Apr 24
First fall frost
Oct 14
Growing season
172 days
Hardiness zone
5b
More local growing data for Manlius: nearby ZIP 61338 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Arlington
Buda
Bureau Junction
Cherry
Dalzell
De Pue
Dover
Hollowayville
La Moille
Ladd
Malden
Mineral
Neponset
New Bedford
Ohio
Princeton
Seatonville
Sheffield
Spring Valley
Tiskilwa
Walnut
Wyanet
Climate data from the nearest NOAA station, Walnut, Il (7 mi from Manlius). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.