Weather forecast for tomorrow
Waterloo, IA

Weather forecast for tomorrow

Monday, Jun 16.

Partly Cloudy
5:29 am

8:50 pm
CDT
Partly Cloudy
88°F / 68°F
  • Wind: 12mph S
  • Humidity: 68%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 8
Tomorrow, on Monday, scattered clouds may briefly filter the sunlight, but it will remain bright overall.
Forecasted temperatures will peak at a humid 87.8°F and dip to a minimum of a delightful 68°F.
The maximum heat index, which indicates how humid air affects the felt temperature, is assessed at a torrid 98.6°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
It will be hotter, as the maximum temperature reflects July's norm of 80.1°F instead of June's.
Sunrise will be at 5:29 am and sunset at 8:50 pm; tomorrow's daylight will last for 15h and 21min.

Frequently asked questions

What is the weather forecast for Waterloo for tomorrow?
On Monday, in Waterloo, sunny moments will alternate with patchy cloud cover.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 87.8°F, while the lowest temperature will be 68°F. The maximum heat index, which integrates air moisture with ambient temperature, is computed to be 98.6°F.
The highest temperature will be significantly higher than the average maximum of 77.7°F in June. The lowest temperature will be slightly warmer than the average low of 61.3°F.
When are sunrise and sunset tomorrow?
On Monday, in Waterloo, sunrise will be at 5:29 am and sunset at 8:50 pm (CDT).
How long will the day be tomorrow?
In Waterloo, the length of the day tomorrow will be 15h and 21min.

Hourly weather forecast

12 am
  • 72°F
  • Feels like:
    72°F
Cloudy
Cloudy
  • Wind: 6mph SSE
  • Pressure: 29.97"Hg
  • Humidity: 87%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Wind: 6mph S
  • Pressure: 29.97"Hg
  • Humidity: 94%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 9mi
4 am
  • 68°F
  • Feels like:
    68°F
Cloudy
Cloudy
  • Wind: 6mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 95%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 6mi
Sunrise: 5:29 am
6 am
  • 66°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 4mph SSE
  • Pressure: 29.94"Hg
  • Humidity: 98%
  • Precip. probability: 18%
  • Precipitation: 0"
  • Visibility: 4mi
8 am
  • 70°F
  • Feels like:
    72°F
Partly Cloudy
Partly Cloudy
  • Wind: 6mph S
  • Pressure: 29.94"Hg
  • Humidity: 87%
  • Precip. probability: 14%
  • Precipitation: 0"
  • Visibility: 10mi
10 am
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 10mph S
  • Pressure: 29.91"Hg
  • Humidity: 73%
  • Precip. probability: 43%
  • Precipitation: 0.04"
  • Visibility: 7mi
12 pm
  • 81°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph S
  • Pressure: 29.88"Hg
  • Humidity: 67%
  • Precip. probability: 12%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 84°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph S
  • Pressure: 29.83"Hg
  • Humidity: 58%
  • Precip. probability: 7%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 86°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph SSW
  • Pressure: 29.77"Hg
  • Humidity: 54%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 86°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph SSW
  • Pressure: 29.74"Hg
  • Humidity: 55%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 81°F
  • Feels like:
    84°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SSW
  • Pressure: 29.74"Hg
  • Humidity: 62%
  • Precip. probability: 5%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:50 pm
10 pm
  • 75°F
  • Feels like:
    77°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 9mph S
  • Pressure: 29.74"Hg
  • Humidity: 78%
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Visibility: 9mi
Tomorrow, on Monday, primarily overcast and occasionally stormy weather is anticipated.
With minimal precipitation of 0.04", rainfall is anticipated at 10 am and 10 pm.
The temperature will be between the lowest temperature of 66.2°F and the highest temperature of 86°F. The hottest part of the day will be from 4 pm to 6 pm.
The maximum is expected to resemble July's average high of 80.1°F rather than June's. Forecast models suggest a low also more similar to July's typical minimum of 63.1°F than June's usual 61.3°F.
Updated: Jun 16, 2025 @ 02:31:31 UTC
Published by: Weather U.S. | About Us
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