Waterman, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Waterman, a village in Dekalb County, Illinois.
This Afternoon
72°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 72. East wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Waterman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Rain Showers | 10 to 15 mph E | 52% |
| Tonight | 63°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 10 to 15 mph ESE | 43% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 5 to 10 mph SSE | 80% |
| Saturday Night | 64°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NNE | 79% |
| Sunday | 69°F | Showers And Thunderstorms | 10 to 20 mph NNE | 79% |
| Sunday Night | 56°F | Rain Showers Likely | 15 mph NE | 66% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 51% |
| Monday Night | 51°F | Chance Rain Showers | 15 mph NE | 33% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 27% |
| Tuesday Night | 50°F | Mostly Cloudy | 10 to 15 mph NNE | 10% |
| Wednesday | 66°F | Partly Sunny | 10 to 15 mph NNE | 6% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 52°F | Partly Cloudy | 5 mph NNE | 4% |
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
5b
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
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 Sep 18, 2026.