Weather forecast for 10 days
Ottawa, OH

Weather forecast for the weekend

Saturday, Jun 21.

Mostly Sunny
6:02 am

9:13 pm
EDT
Mostly Sunny
93°F / 77°F
  • Wind: 19mph SSW
  • Humidity: 66%
  • Precip. probability: 6%
  • Precipitation: 0"
  • UV index: 9
Tomorrow, on Saturday, June 21, expect brilliant sunshine under mostly clear skies.
The maximum temperature will be a blazing 93.2°F, while the minimum forecasted temperature is a moderately hot 77°F.
The maximum heat index, which combines relative humidity and air temperature, is assessed at a life-threatening 113°F. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow, the high of 93.2°F will be higher and more in line with July's typical maximum of 81.1°F than June's 77.9°F.
Sunrise will be at 6:02 am and sunset at 9:13 pm; tomorrow's daylight will last for 15h and 11min.

Sunday, Jun 22.

Sunny
6:02 am

9:13 pm
EDT
Sunny
97°F / 75°F
  • Wind: 15mph SW
  • Humidity: 63%
  • Precip. probability: 7%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Ottawa, uninterrupted sunshine is anticipated.
Temperatures are expected to peak at a torrid 96.8°F and drop to a minimum of a moderately hot 75.2°F.
Conditions will lean hotter, as the high of 96.8°F is more representative of July's climate.
Sunrise will be at 6:02 am and sunset at 9:13 pm; the daylight will last for 15h and 11min.

Frequently asked questions

What is the weather forecast for Ottawa for tomorrow?
On Saturday, bright conditions and mild breezes are expected.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 93.2°F, while the lowest temperature will be 77°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is estimated at 113°F.
Tomorrow, the maximum temperature will be notably higher than the average highest temperature of 77.9°F in June. The lowest temperature will be also noticeably higher than the average low of 61°F.
When is the sunrise / sunset tomorrow?
On Saturday, in Ottawa, sunrise will be at 6:02 am and sunset at 9:13 pm (EDT).
How long will the day be tomorrow?
Tomorrow, the daylight will last for 15h and 11min.
What is the weather forecast for Ottawa for Sunday?
On Sunday, in Ottawa, sunshine will likely continue with scattered clouds at most.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 96.8°F, while the lowest temperature will be 75.2°F.
What is the weather forecast for Ottawa for the next ten days?
In Ottawa, a combination of dry and sunny, storm-filled and cloudy weather is forecasted for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Wednesday through next Sunday in Ottawa. With light precipitation of 0.24", next Sunday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 86°F and 96.8°F, while the minimum temperature will vary between 69.8°F and 77°F.
Taking the humidity into consideration, the maximum feel-like temperature will vary between 95°F and 122°F.
What will be the hottest and the coldest days?
With a maximum temperature of 96.8°F, Sunday through Tuesday will be the hottest days. With a maximum temperature of 86°F, Friday, next Saturday and Sunday will be the coldest days.

Long-term weather forecast

FriJun 20.
  • 86°F
  • 70°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph WSW
  • Humidity: 70%
  • UV index: 6
  • Precip. probability: 15%
  • Precipitation: 0"
  • 6:02 am 9:13 pm EDT
SatJun 21.
  • 93°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Wind: 19mph SSW
  • Humidity: 66%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 6:02 am 9:13 pm EDT
SunJun 22.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 15mph SW
  • Humidity: 63%
  • UV index: 9
  • Precip. probability: 7%
  • Precipitation: 0"
  • 6:02 am 9:13 pm EDT
MonJun 23.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 13mph SW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 6%
  • Precipitation: 0"
  • 6:03 am 9:13 pm EDT
TueJun 24.
  • 97°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph WSW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 12%
  • Precipitation: 0"
  • 6:03 am 9:14 pm EDT
WedJun 25.
  • 93°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 10mph WSW
  • Humidity: 67%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • 6:03 am 9:14 pm EDT
ThuJun 26.
  • 90°F
  • 72°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 10mph WSW
  • Humidity: 74%
  • UV index: 9
  • Precip. probability: 42%
  • Precipitation: 0.2"
  • 6:04 am 9:14 pm EDT
FriJun 27.
  • 88°F
  • 72°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 12mph SW
  • Humidity: 76%
  • UV index: 9
  • Precip. probability: 37%
  • Precipitation: 0.08"
  • 6:04 am 9:14 pm EDT
SatJun 28.
  • 86°F
  • 70°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 11mph WSW
  • Humidity: 75%
  • UV index: 9
  • Precip. probability: 33%
  • Precipitation: 0.16"
  • 6:05 am 9:14 pm EDT
SunJun 29.
  • 86°F
  • 70°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 12mph WSW
  • Humidity: 75%
  • UV index: 7
  • Precip. probability: 47%
  • Precipitation: 0.24"
  • 6:05 am 9:14 pm EDT
For the next ten days, a combination of sunny, lightning-active and overcast weather is forecasted.
Rainfall is expected on Wednesday through next Sunday.
In the upcoming days, the maximum temperature will range between 86°F and 96.8°F, while the forecast minimum temperature falls between 69.8°F and 77°F.
The hottest days will be Sunday through Tuesday, with a maximum of 96.8°F; with a maximum temperature of 86°F, Friday, next Saturday and Sunday will be the coldest days.
Including the humidity's impact, the maximum feel-like temperature may increase significantly and range between a very hot 95°F and a dangerously hot 122°F.
Updated: Jun 20, 2025 @ 10:24:39 UTC
Published by: Weather U.S. | About Us
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