Weather forecast for tomorrowGrinnell, IA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 16mphSSW 193°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:26 am CDT
- Sunset: 6:25 pm CDT
- details ▼
On Sunday, October 18, the weather remains calm, bright, and sunny.
The temperature will vary between a maximum of a breezy 66.2°F and a minimum of an icy 41°F.
Tomorrow's peak is expected to be a few degrees higher than the regular high for October at 59.9°F.
Sunrise will be at 7:26 am and sunset at 6:25 pm; tomorrow's daylight will last for 10h and 58min.
The temperature will vary between a maximum of a breezy 66.2°F and a minimum of an icy 41°F.
Tomorrow's peak is expected to be a few degrees higher than the regular high for October at 59.9°F.
Sunrise will be at 7:26 am and sunset at 6:25 pm; tomorrow's daylight will last for 10h and 58min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest period: 3 am - 6 am 41°C.
Coldest period: 3 am - 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 4%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:37°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 10mphSSW 195°
- Humidity: 72%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 43°F
- Feels like:36°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 10mphSSW 194°
- Humidity: 75%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSSW 194°
- Humidity: 78%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:34°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSSW 193°
- Humidity: 81%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:26 am
- 8 am
- 41°F
- Feels like:36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphS 189°
- Humidity: 81%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:45°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 14mphSSW 194°
- Humidity: 63%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:55°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 16mphSSW 197°
- Humidity: 47%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 195°
- Humidity: 39%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphS 191°
- Humidity: 36%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 10mphS 185°
- Humidity: 43%
- Pressure: 30.21"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:25 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 8mphS 180°
- Humidity: 63%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:48°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphS 183°
- Humidity: 73%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, mostly cloudless and sunny weather is anticipated.
The temperature will vary between a minimum of 41°F and a maximum of 64.4°F. The feels-like temperature will vary between a minimum of 33.8°F and a maximum of 62.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 59.9°F. The lowest temperature is also consistent with October's typical minimum of 44.4°F.
The temperature will vary between a minimum of 41°F and a maximum of 64.4°F. The feels-like temperature will vary between a minimum of 33.8°F and a maximum of 62.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 59.9°F. The lowest temperature is also consistent with October's typical minimum of 44.4°F.
Updated: Oct 18, 2026 @ 01:05:20 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, sunshine will likely continue with scattered clouds at most.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 41°F.
The maximum temperature tomorrow will be a couple of degrees higher than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
The maximum temperature tomorrow will be a couple of degrees higher than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Grinnell, sunrise will be at 7:26 am and sunset at 6:25 pm (CDT).
In Grinnell, tomorrow, there will be 10h and 58min of daylight.
