Grafton, WI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grafton, WI in one place.
Sunny, with a high near 96. West wind around 5 mph.
Local Weather Overview
This forecast page for Grafton, WI 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 12, 2026 12:34 AM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Grafton, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 12:34 AM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grafton
Tuesday looks like the warmest upcoming period in Grafton at 96 degrees F.
Friday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 12:34 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- MKX
- Radar station
- KMKX
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 73. West wind around 5 mph.
Sunny, with a high near 93. North wind around 5 mph.
Mostly clear, with a low around 68.
Sunny, with a high near 90.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
A chance of rain showers. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
96°F |
5 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
73°F |
5 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
93°F |
5 mph
N
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
68°F |
0 to 5 mph
N
|
|
Thursday
Jul 16
|
Sunny
|
90°F |
0 to 5 mph
SW
|
|
Thursday Night
Jul 16
|
Partly Cloudy then Slight Chance Rain Showers
|
68°F |
0 to 5 mph
SW
|
|
Friday
Jul 17
|
Chance Rain Showers
|
88°F |
5 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
67°F |
5 mph
SW
|
|
Saturday
Jul 18
|
Chance Rain Showers
|
88°F |
5 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grafton.
