---
title: "10 Day Weather Forecast for Grafton, IA"
description: "Get the latest 10 day weather forecast for Grafton, IA. Stay prepared with accurate and up-to-date weather information to plan your week ahead."
location: "Grafton, IA"
canonical: "https://www.weatherbug.com/weather-forecast/10-day-weather/grafton-ia-50440"
coordinates: ["43.3278,-93.0727"]
temperature_units: "°F"
last_updated: "2026-05-31T10:11:00.0000000Z"
source: "WeatherBug"
---

# 10 Day Weather Forecast for Grafton, IA

Get the latest 10-day weather forecast for Grafton, IA, including day and night conditions, high and low temperatures, wind speed and direction and precipitation chances.
Forecast issued on 2026-05-31T10:11:00+00:00.

## 10 Day Weather Forecast

| Date       | Day Forecast                                     | Night Forecast                                 | High °F | Low °F |

| ---------- | ------------------------------------------------ |------------------------------------------------| -------: | -------: |

| Sun, May 31 | Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Southeast winds 10 to 15 mph. Chance of rain 50 percent. | Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. East winds 10 to 15 mph. Chance of rain 20 percent. | 71°F | 61°F |
| Mon, Jun 1 | Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs around 80. Southeast winds around 5 mph. Chance of rain 20 percent. | Partly cloudy. Lows in the mid 50s. East winds 5 to 10 mph. | 78°F | 58°F |
| Tue, Jun 2 | Sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph. | Mostly clear in the evening  then becoming partly cloudy. Lows in the mid 50s. | 79°F | 58°F |
| Wed, Jun 3 | Mostly sunny. Highs in the lower 80s. | Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 30 percent. | 81°F | 65°F |
| Thu, Jun 4 | Mostly cloudy in the morning  then becoming partly sunny. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. | Showers likely with a chance of thunderstorms. Lows in the upper 50s. Chance of rain 60 percent. | 81°F | 68°F |
| Fri, Jun 5 | Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning  then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. | Mostly cloudy with a chance of showers and thunderstorms. Lows around 60. Chance of rain 50 percent. | 82°F | 69°F |
| Sat, Jun 6 | Partly sunny. A slight chance of showers and thunderstorms in the morning  then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. | Partly cloudy with a 40% chance for rain and thunderstorms. Low temperature around 66F. Dew point will be around 64F with an average humidity of 77%. Winds will be 5 mph from the S. | 82°F | 66°F |
| Sun, Jun 7 | Mostly sunny with a 25% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 64F with an average humidity of 62%. Winds will be 6 mph from the SE. | Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 67F. Dew point will be around 62F with an average humidity of 70%. Winds will be 7 mph from the SE. | 83°F | 67°F |
| Mon, Jun 8 | Mostly sunny with a 35% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 65F with an average humidity of 63%. Winds will be 10 mph from the SE. | Mostly clear with a 40% chance for rain and thunderstorms. Low temperature around 70F. Dew point will be around 66F with an average humidity of 73%. Winds will be 8 mph from the SE. | 85°F | 70°F |
| Tue, Jun 9 | Partly cloudy with a 35% chance for rain and thunderstorms. High temperature around 87F. Dew point will be around 68F with an average humidity of 64%. Winds will be 8 mph from the S. | Mostly clear with a 35% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 66F with an average humidity of 70%. Winds will be 5 mph from the S. | 87°F | 71°F |



## Source Information
- Source: "https://www.weatherbug.com/weather-forecast/10-day-weather/grafton-ia-50440"
- Last Updated: "2026-05-31T10:11:00+00:00"