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Manlius, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Manlius, a village in Bureau County, Illinois.

Overnight
54°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Mostly cloudy. Low around 54, with temperatures rising to around 56 overnight. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.

7-day forecast for Manlius

WhenTempForecastWindPrecip
Overnight 54°F Slight Chance Rain Showers 10 to 15 mph SW 23%
Wednesday 58°F Chance Rain Showers then Mostly Cloudy 15 mph SW 32%
Wednesday Night 47°F Mostly Cloudy 15 mph SW 14%
Thursday 55°F Chance Rain Showers 10 to 15 mph W 40%
Thursday Night 42°F Slight Chance Rain Showers then Mostly Cloudy 10 mph NW 24%
Friday 50°F Partly Sunny 5 to 10 mph N 5%
Friday Night 32°F Mostly Clear 0 to 5 mph N 0%
Saturday 51°F Sunny 0 to 5 mph NW 0%
Saturday Night 34°F Mostly Clear 0 to 5 mph W 2%
Sunday 57°F Sunny 5 to 10 mph W 3%
Sunday Night 35°F Clear 0 to 5 mph W 1%
Monday 62°F Sunny 0 to 10 mph SW 0%
Monday Night 40°F Mostly Clear 5 mph W 0%
Tuesday 62°F Sunny 5 mph NW 0%

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

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Climate data from the nearest NOAA station, Walnut, Il (7 mi from Manlius). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.