Fullerton, IL Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Fullerton, IL in one place.
Clear, with a low around 29. Northwest wind around 2 mph.
Local Weather Overview
This forecast page for Fullerton, 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: Nov 7, 2026 5:16 AM CST.
The active forecast window currently covers Nov 7 to Nov 13, 2026 for Fullerton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 13, 2026
- Latest sync
- Nov 7, 2026 5:16 AM CST
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fullerton
Tuesday looks like the warmest upcoming period in Fullerton at 66 degrees F.
Overnight is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Thursday at about 10 to 16 mph N.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 7, 2026 5:16 AM CST
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny. High near 52, with temperatures falling to around 46 in the afternoon. West northwest wind 1 to 7 mph.
Mostly clear, with a low around 32. West southwest wind 5 to 9 mph.
Sunny. High near 61, with temperatures falling to around 56 in the afternoon. West wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 34. West northwest wind 1 to 9 mph.
Sunny, with a high near 65. West southwest wind 1 to 10 mph.
Mostly clear, with a low around 43. West southwest wind around 10 mph.
Sunny, with a high near 66.
Mostly clear, with a low around 37.
Mostly sunny, with a high near 61.
A slight chance of rain before midnight. Partly cloudy, with a low around 37.
A slight chance of rain. Partly sunny, with a high near 52.
Mostly cloudy, with a low around 32.
Mostly sunny, with a high near 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 7
|
Clear
|
29°F |
2 mph
NW
|
|
Saturday
Nov 7
|
Mostly Sunny
|
52°F |
1 to 7 mph
WNW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
32°F |
5 to 9 mph
WSW
|
|
Sunday
Nov 8
|
Sunny
|
61°F |
10 to 15 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
34°F |
1 to 9 mph
WNW
|
|
Monday
Nov 9
|
Sunny
|
65°F |
1 to 10 mph
WSW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
43°F |
10 mph
WSW
|
|
Tuesday
Nov 10
|
Sunny
|
66°F |
7 mph
WNW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
37°F |
5 mph
NW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
61°F |
2 to 8 mph
NNW
|
|
Wednesday Night
Nov 11
|
Slight Chance Light Rain then Partly Cloudy
|
37°F |
7 to 10 mph
N
|
|
Thursday
Nov 12
|
Slight Chance Light Rain
|
52°F |
10 to 16 mph
N
|
|
Thursday Night
Nov 12
|
Mostly Cloudy
|
32°F |
9 to 14 mph
N
|
|
Friday
Nov 13
|
Mostly Sunny
|
49°F |
9 to 13 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fullerton.