Grafton, WI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Grafton, WI in one place.
Showers and thunderstorms likely. Mostly cloudy, with a high near 70. South wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
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: Apr 9, 2026 4:19 PM CDT.
The active forecast window currently covers Apr 12 to Apr 15, 2026 for Grafton, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 12 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 4:19 PM CDT
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grafton
Monday looks like the warmest upcoming period in Grafton at 75 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Sunday at about 10 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 4:19 PM CDT
- Coverage
- 4 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
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Rain showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 12
|
Showers And Thunderstorms Likely
|
70°F |
10 to 20 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
60°F |
15 to 20 mph
SW
|
|
Monday
Apr 13
|
Chance Rain Showers
|
75°F |
10 to 15 mph
SW
|
|
Monday Night
Apr 13
|
Showers And Thunderstorms Likely
|
55°F |
10 mph
SW
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
71°F |
10 to 15 mph
SW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
50°F |
10 mph
S
|
|
Wednesday
Apr 15
|
Rain Showers Likely
|
64°F |
10 to 15 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Rain Showers
|
45°F |
10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grafton.
