Northfield, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Northfield, IL in one place.
Mostly sunny, with a high near 96. Heat index values as high as 101. North northwest wind around 5 mph.
Local Weather Overview
This forecast page for Northfield, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 4:48 AM CDT.
The active forecast window currently covers Jul 15 to Jul 20, 2026 for Northfield, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 4:48 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Northfield
Wednesday looks like the warmest upcoming period in Northfield at 96 degrees F.
Sunday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph WSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 4:48 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 75. North northwest wind 0 to 5 mph.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 69.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Mostly Sunny
|
96°F |
5 mph
NNW
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
75°F |
0 to 5 mph
NNW
|
|
Thursday
Jul 16
|
Sunny then Slight Chance Showers And Thunderstorms
|
94°F |
0 to 5 mph
N
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
0 to 5 mph
NE
|
|
Friday
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
89°F |
0 to 10 mph
E
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
74°F |
5 mph
S
|
|
Saturday
Jul 18
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
5 to 15 mph
WSW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
71°F |
10 mph
NW
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms
|
86°F |
10 to 15 mph
NNE
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
69°F |
5 to 15 mph
NW
|
|
Monday
Jul 20
|
Slight Chance Rain Showers
|
86°F |
5 to 10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Northfield.