Grafton, IA Weather Forecast
Local 7-day forecast
Partly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Grafton, IA in one place.
Partly cloudy. Low around 53, with temperatures rising to around 56 overnight. East southeast wind around 5 mph.
Local Weather Overview
This forecast page for Grafton, IA 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: Jun 2, 2026 2:30 AM CDT.
The active forecast window currently covers Jun 2 to Jun 8, 2026 for Grafton, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 2 to Jun 8, 2026
- Latest sync
- Jun 2, 2026 2:30 AM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grafton
Sunday looks like the warmest upcoming period in Grafton at 86 degrees F.
Overnight is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Wednesday at about 9 to 16 mph SSE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 2, 2026 2:30 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 81. East southeast wind 6 to 12 mph.
Mostly clear. Low around 53, with temperatures rising to around 56 overnight. Southeast wind 7 to 10 mph.
Mostly sunny, with a high near 81. South southeast wind 9 to 16 mph, with gusts as high as 22 mph.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 58. South wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jun 2
|
Partly Cloudy
|
53°F |
5 mph
ESE
|
|
Tuesday
Jun 2
|
Sunny
|
81°F |
6 to 12 mph
ESE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
53°F |
7 to 10 mph
SE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
81°F |
9 to 16 mph
SSE
|
|
Wednesday Night
Jun 3
|
Mostly Cloudy then Slight Chance Rain Showers
|
58°F |
10 to 15 mph
S
|
|
Thursday
Jun 4
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
81°F |
13 mph
SSW
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms
|
62°F |
6 to 10 mph
SSW
|
|
Friday
Jun 5
|
Showers And Thunderstorms Likely
|
84°F |
6 to 10 mph
S
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
6 to 9 mph
SSW
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
84°F |
7 to 10 mph
WNW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
63°F |
6 to 9 mph
ENE
|
|
Sunday
Jun 7
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
7 to 13 mph
SE
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
65°F |
8 to 12 mph
SE
|
|
Monday
Jun 8
|
Chance Showers And Thunderstorms
|
86°F |
12 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grafton.