Waterman, IL Weather & Growing Conditions

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

Tonight

57°F

Rain Showers

Rain showers. Cloudy. Low around 57, with temperatures rising to around 60 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast for Waterman

When	Temp	Forecast	Wind	Precip
Tonight	57°F	Rain Showers	15 mph S	92%
Wednesday	60°F	Chance Rain Showers	15 mph SSW	47%
Wednesday Night	46°F	Mostly Cloudy then Slight Chance Rain Showers	15 mph SW	18%
Thursday	55°F	Chance Rain Showers	10 to 15 mph WSW	42%
Thursday Night	42°F	Chance Rain Showers	5 to 10 mph NW	40%
Friday	51°F	Slight Chance Rain Showers then Mostly Cloudy	10 to 15 mph N	19%
Friday Night	34°F	Partly Cloudy	5 to 10 mph NNW	3%
Saturday	51°F	Mostly Sunny	5 mph WNW	2%
Saturday Night	34°F	Partly Cloudy	0 to 5 mph WSW	4%
Sunday	56°F	Mostly Sunny	5 to 10 mph W	13%
Sunday Night	35°F	Mostly Clear	5 mph WNW	5%
Monday	60°F	Sunny	5 to 15 mph WSW	3%
Monday Night	39°F	Mostly Clear	5 to 10 mph W	1%
Tuesday	61°F	Sunny	5 to 10 mph WNW	0%

Forecast source: National Weather Service (api.weather.gov) for Waterman (41.766, -88.763). Updated through the day.

Growing snapshot for Waterman

Last spring frost

Apr 28

First fall frost

Oct 10

Growing season

163 days

Hardiness zone

More local growing data for Waterman: nearby ZIP 60556 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

Cortland DeKalb Genoa Hinckley Kingston Kirkland Lake Holiday Malta Sandwich Shabbona Somonauk Sycamore

All Illinois locations ›

Climate data from the nearest NOAA station, Shabbona 5 Nne, Il (6.9 mi from Waterman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.