Weather forecast for tomorrowMerrill, IA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 18mphS 187°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:42 am CDT
  • Sunset: 6:38 pm CDT
  • ▼
Tomorrow, the outlook remains bright and sunny.
Temperatures are set to span a considerable range, with a high of a pleasant 69.8°F and a low of a cold 41°F.
A forecast high of 69.8°F brings conditions more familiar to September's average than October's.
Sunrise will be at 7:42 am and sunset at 6:38 pm; tomorrow's daylight will last for 10h and 56min.

Hourly overview

Hourly temperatures

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

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 48°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 188°
  • Humidity: 62%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 46°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 15mphS 190°
  • Humidity: 66%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 45°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 15mphS 187°
  • Humidity: 71%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphS 186°
  • Humidity: 75%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:42 am
  • 8 am
  • 43°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 14mphS 186°
  • Humidity: 77%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphS 188°
  • Humidity: 63%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphS 188°
  • Humidity: 48%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphS 189°
  • Humidity: 40%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphS 187°
  • Humidity: 37%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphS 179°
  • Humidity: 39%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:38 pm
  • 8 pm
  • 57°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphS 173°
  • Humidity: 54%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphS 177°
  • Humidity: 63%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 68°F. The feels-like temperature will be between a minimum of 33.8°F and a maximum of 68°F. The warmest part of the day will be around 4 pm.
Tomorrow, the forecasted maximum will be more consistent with September's average high of 75°F than October's 58.8°F. The minimum temperature will be similar to October's average low of 42.8°F.
Updated: Oct 17, 2026 @ 18:10:00 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, the outlook remains bright and sunny.

Tomorrow, the highest temperature will be 69.8°F, while the lowest temperature will be 41°F.
The highest temperature tomorrow will be significantly higher than the average maximum of 58.8°F in October. The lowest temperature will be in line with the average low of 42.8°F.

On Sunday, in Merrill, sunrise will be at 7:42 am and sunset at 6:38 pm (CDT).

In Merrill, the length of the day tomorrow will be 10h and 56min.