Weather forecast for tomorrow
Grimes, IA

Weather forecast for tomorrow

Monday, Jun 16.

Isolated Thunderstorms
5:38 am

8:53 pm
CDT
Isolated Thunderstorms
88°F / 70°F
  • Wind: 11mph S
  • Humidity: 70%
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • UV index: 9
On Monday, in Grimes, isolated storm cells will bring brief downpours and thunder.
Minimal precipitation is expected for tomorrow. The highest anticipated temperature is a blazing 87.8°F, while the lowest temperature will be a delightful 69.8°F.
The maximum heat index, which factors the actual air temperature with the relative humidity, is assessed at a torrid 100.4°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The expected high is higher and consistent with July's normal of 82.4°F rather than June's.
Sunrise will be at 5:38 am and sunset at 8:53 pm; tomorrow's daylight will last for 15h and 15min.

Frequently asked questions

What is the weather forecast for Grimes for tomorrow?
On Monday, isolated storm cells will bring brief downpours and thunder.
Will it rain tomorrow?
Tomorrow, there is a low probability of minimal rainfall in Grimes.
What will be the maximum temperature tomorrow?
Tomorrow, the maximum temperature will be 87.8°F, while the minimum temperature will be 69.8°F. The maximum heat index, which combines relative humidity and air temperature, is estimated at 100.4°F.
The highest temperature will be slightly warmer than the average maximum of 79.3°F in June. The lowest temperature will be also a couple of degrees higher than the average low of 62.4°F.
What time are sunrise and sunset tomorrow?
On Monday, in Grimes, sunrise will be at 5:38 am and sunset at 8:53 pm (CDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 15h and 15min.

Hourly weather forecast

12 am
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SE
  • Pressure: 29.97"Hg
  • Humidity: 100%
  • Precip. probability: 23%
  • Precipitation: 0"
  • Visibility: 9mi
2 am
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph SE
  • Pressure: 29.97"Hg
  • Humidity: 95%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
4 am
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 95%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
Sunrise: 5:38 am
6 am
  • 68°F
  • Feels like:
    70°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph S
  • Pressure: 29.91"Hg
  • Humidity: 97%
  • Precip. probability: 11%
  • Precipitation: 0"
  • Visibility: 8mi
8 am
  • 72°F
  • Feels like:
    73°F
Few Showers
Few Showers
  • Wind: 6mph SSE
  • Pressure: 29.91"Hg
  • Humidity: 90%
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Visibility: 10mi
10 am
  • 75°F
  • Feels like:
    81°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph S
  • Pressure: 29.91"Hg
  • Humidity: 79%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 10mph SSW
  • Pressure: 29.88"Hg
  • Humidity: 68%
  • Precip. probability: 24%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 84°F
  • Feels like:
    90°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph S
  • Pressure: 29.83"Hg
  • Humidity: 59%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 86°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 10mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 55%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 86°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SSW
  • Pressure: 29.74"Hg
  • Humidity: 55%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 82°F
  • Feels like:
    88°F
Mostly Sunny
Mostly Sunny
  • Wind: 9mph S
  • Pressure: 29.71"Hg
  • Humidity: 61%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:53 pm
10 pm
  • 79°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph S
  • Pressure: 29.74"Hg
  • Humidity: 73%
  • Precip. probability: 23%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, on Monday, weather will be unstable, and a combination of primarily cloudy and occasionally rainy, lightning-active and bright weather is predicted.
With minimal precipitation of 0.04", rain is forecasted at 8 am and 9 am.
The temperature will vary between the lowest temperature of 66.2°F and the highest temperature of 86°F. The hottest part of the day will be from 3 pm to 7 pm.
The forecasted high is more comparable to July's typical maximum of 82.4°F than the usual for June. The expected low will be also more in line with what’s common in July than the current June average of 62.4°F.
Updated: Jun 16, 2025 @ 03:21:07 UTC
Published by: Weather U.S. | About Us
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