Weather forecast for tomorrowGrimes, IA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 66°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 16mphS 191°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:31 am CDT
  • Sunset: 6:29 pm CDT
  • ▼
On Sunday, October 18, a sun-drenched sky is also anticipated.
The highest temperature will be a breezy 66.2°F, while the lowest temperature will be a cold 41°F.
The temperature for tomorrow is expected to be a few degrees higher than the October average of 60.4°F.
Sunrise will be at 7:31 am and sunset at 6:29 pm; tomorrow's daylight will last for 10h and 58min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest period: 3 am - 6 am 43°C.

Chance of precipitation

Highest chance: 6 am 5%.

Hourly weather forecast

  • 12 am
  • 46°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphS 189°
  • Humidity: 70%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphS 189°
  • Humidity: 76%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphSSW 194°
  • Humidity: 80%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphS 190°
  • Humidity: 84%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:31 am
  • 8 am
  • 43°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 10mphS 189°
  • Humidity: 82%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphSSW 193°
  • Humidity: 61%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 61°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSSW 194°
  • Humidity: 46%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSSW 193°
  • Humidity: 40%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSSW 192°
  • Humidity: 37%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphS 180°
  • Humidity: 41%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:29 pm
  • 8 pm
  • 55°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphS 174°
  • Humidity: 59%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphS 185°
  • Humidity: 70%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, sunshine is expected.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 66.2°F. The warmest part of the day is expected around 3 pm.
Tomorrow, the temperature is expected to be moderately higher than October's normal maximum of 60.4°F. The minimum temperature will be also consistent with October's average low of 44.6°F.
Updated: Oct 17, 2026 @ 20:27:44 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunny skies are in store, with excellent visibility.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 41°F.
The highest temperature will be slightly warmer than the average maximum of 60.4°F in October. The lowest temperature will be in line with the average low of 44.6°F.

On Sunday, in Grimes, sunrise will be at 7:31 am and sunset at 6:29 pm (CDT).

In Grimes, tomorrow, there will be 10h and 58min of daylight.