Weather forecast for 10 daysWaterloo, IA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 59°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphSSW 208°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:24 pm CDT
  • ▼
Today, sunny and dry conditions are anticipated.
Expected temperature values will span from a refreshing 59°F down to a wintry 41°F.
Forecasts show that today the temperature will align with October's standard maximum of 58.5°F.
Sunrise was at 7:25 am and sunset will be at 6:24 pm; the daylight will last for 10h and 59min.

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 17mphSSW 194°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:26 am CDT
  • Sunset: 6:22 pm CDT
  • ▼
On Sunday, October 18, expect consistent sunshine and open skies.
Temperature fluctuations will be substantial, ranging from a peak of an enjoyable 66.2°F to a low of a wintry 39.2°F.
Tomorrow, the predicted high will be higher and much closer to September's average high of 73.2°F than October's 58.5°F.
Sunrise will be at 7:26 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 56min.

10-day overview

Daily temperatures

Warmest period: Thursday - Saturday 75°C.
Coldest day: today 59°C.

Chance of precipitation

Highest chance: Wednesday 15%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 59°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphSSW 208°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:24 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 17mphSSW 194°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:26 am CDT
  • Sunset: 6:22 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphS 173°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:27 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphSSE 150°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:28 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphS 177°
  • Humidity: 61%
  • UV index: 4
  • Sunrise: 7:29 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSE 144°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:30 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 12mphSE 145°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:32 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 14mphSSE 160°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:33 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphW 279°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:34 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 70°F
  • 52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphESE 103°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 7:35 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
Weather models show that a combination of sunny and cloudy weather is predicted.
Rainfall is not forecasted in Waterloo in the upcoming period.
Substantial differences in temperature are forecasted throughout the forecast window. Maximum temperatures are forecasted between 59°F and 75.2°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 39.2°F up to 53.6°F.
Thursday through next Saturday, with the highest temperature of 75.2°F, will be the warmest days in Waterloo; today is the coldest day, with a maximum temperature of 59°F.
Updated: Oct 17, 2026 @ 16:28:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sunshine and minimal clouds are in the outlook.

Today, the highest temperature will be 59°F, while the lowest temperature will be 41°F.
Today, the highest temperature will be in line with the average maximum temperature in October. The lowest temperature today will be also in line with the average low temperature.

On Saturday, in Waterloo, sunrise was at 7:25 am and sunset will be at 6:24 pm (CDT).

In Waterloo, the length of the day today will be 10h and 59min.

Tomorrow, in Waterloo, skies will stay clear and sunny.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
Tomorrow, the highest temperature will be moderately higher than the average maximum temperature in October. Tomorrow, the lowest temperature will be also relatively lower than the average low temperature.

On Sunday, in Waterloo, sunrise will be at 7:26 am and sunset at 6:22 pm (CDT).

Tomorrow, the daylight will last for 10h and 56min.