Northfield, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northfield, a village in Cook County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph.
7-day forecast for Northfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SW | 28% |
| Wednesday | 80°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph W | 72% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 0 to 5 mph NNW | 89% |
| Thursday | 76°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 65% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 19% |
| Friday | 79°F | Mostly Sunny | 0 to 5 mph NNE | 3% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph SSE | 8% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 15% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 21% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 46% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 46% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 49% |
Forecast source: National Weather Service (api.weather.gov) for Northfield (42.103, -87.777). Updated through the day.
Growing snapshot for Northfield
Last spring frost
Apr 26
First fall frost
Oct 21
Growing season
176 days
Hardiness zone
6a
More local growing data for Northfield: nearby ZIP 60093 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Chicago Botanic Garden, Il (3 mi from Northfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.