Grafton, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grafton, IL in one place.
Mostly sunny. High near 56, with temperatures falling to around 52 in the afternoon. Northwest wind around 3 mph.
Local Weather Overview
This forecast page for Grafton, 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 6, 2026 10:33 PM CST.
The active forecast window currently covers Nov 7 to Nov 13, 2026 for Grafton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 13, 2026
- Latest sync
- Nov 6, 2026 10:33 PM CST
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grafton
Monday looks like the warmest upcoming period in Grafton at 69 degrees F.
Saturday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Thursday at about 3 to 9 mph N.
The forecast from Nov 7 through Nov 13 stays mostly dry.
Forecast Details
- Last updated
- Nov 6, 2026 10:33 PM CST
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 35. Southwest wind 0 to 5 mph.
Sunny. High near 65, with temperatures falling to around 60 in the afternoon. West wind 5 to 8 mph.
Mostly clear, with a low around 41. West wind 0 to 5 mph.
Sunny. High near 69, with temperatures falling to around 64 in the afternoon.
Clear, with a low around 46.
Sunny, with a high near 69.
Mostly clear, with a low around 44.
Mostly sunny, with a high near 65.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 59.
Partly cloudy, with a low around 38.
Sunny, with a high near 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Nov 7
|
Mostly Sunny
|
56°F |
3 mph
NW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
35°F |
0 to 5 mph
SW
|
|
Sunday
Nov 8
|
Sunny
|
65°F |
5 to 8 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
41°F |
0 to 5 mph
W
|
|
Monday
Nov 9
|
Sunny
|
69°F |
0 to 7 mph
SW
|
|
Monday Night
Nov 9
|
Clear
|
46°F |
5 mph
SW
|
|
Tuesday
Nov 10
|
Sunny
|
69°F |
5 mph
NW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
44°F |
2 mph
N
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
65°F |
1 to 6 mph
N
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
41°F |
5 mph
N
|
|
Thursday
Nov 12
|
Mostly Sunny
|
59°F |
3 to 9 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
38°F |
2 to 6 mph
N
|
|
Friday
Nov 13
|
Sunny
|
60°F |
3 to 7 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grafton.
