Weather forecast for 10 daysOntario, WI
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 16mphSSW 203°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:20 am CDT
- Sunset: 6:14 pm CDT
- details ▼
On Sunday, in Ontario, a sun-drenched sky is anticipated.
The temperature scale will run from a maximum of a breezy 64.4°F to a minimum of a cold 39.2°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise will be at 7:20 am and sunset at 6:14 pm; the daylight will last for 10h and 53min.
The temperature scale will run from a maximum of a breezy 64.4°F to a minimum of a cold 39.2°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise will be at 7:20 am and sunset at 6:14 pm; the daylight will last for 10h and 53min.
10-day overview
Daily temperatures
Warmest day: Thursday 73°C.
Coldest day: Tuesday 27.10. 63°C.
Coldest day: Tuesday 27.10. 63°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 20%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 64°F
- 39°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 16mphSSW 203°
- Humidity: 54%
- UV index: 3
- Sunrise: 7:20 am CDT
- Sunset: 6:14 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 39°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphSSW 193°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:21 am CDT
- Sunset: 6:12 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 41°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphSSE 151°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:23 am CDT
- Sunset: 6:10 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 45°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 6mphSSW 198°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:24 am CDT
- Sunset: 6:09 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 46°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 5mphSSE 149°
- Humidity: 64%
- UV index: 3
- Sunrise: 7:25 am CDT
- Sunset: 6:07 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 50°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 10mphSSE 157°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:27 am CDT
- Sunset: 6:06 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 72°F
- 50°F
Mostly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 13mphS 172°
- Humidity: 57%
- UV index: 2
- Sunrise: 7:28 am CDT
- Sunset: 6:04 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 68°F
- 46°F
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 8mphWSW 237°
- Humidity: 59%
- UV index: 3
- Sunrise: 7:29 am CDT
- Sunset: 6:03 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 43°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 6mphE 88°
- Humidity: 63%
- UV index: 3
- Sunrise: 7:30 am CDT
- Sunset: 6:01 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 63°F
- 48°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 7mphSE 140°
- Humidity: 68%
- UV index: 2
- Sunrise: 7:32 am CDT
- Sunset: 6:00 pm CDT
- details ▼
Weather models show that a combination of overcast and clear weather is forecasted.
Rainfall is not predicted in Ontario in the upcoming period.
In the coming days, the maximum temperature will vary between 62.6°F and 73.4°F, while the low temperature range extends from 39.2°F to 50°F.
Thursday is expected to be the warmest, reaching up to 73.4°F; with the highest temperature of 62.6°F, next Tuesday will be the coldest day.
Rainfall is not predicted in Ontario in the upcoming period.
In the coming days, the maximum temperature will vary between 62.6°F and 73.4°F, while the low temperature range extends from 39.2°F to 50°F.
Thursday is expected to be the warmest, reaching up to 73.4°F; with the highest temperature of 62.6°F, next Tuesday will be the coldest day.
Updated: Oct 18, 2026 @ 06:18:53 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, in Ontario, expect sunny weather with a crisp, clear sky.
Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 39.2°F.
Today, the maximum temperature will be relatively higher than the average highest temperature in October. The lowest temperature today will be in line with the average low temperature.
Today, the maximum temperature will be relatively higher than the average highest temperature in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Ontario, sunrise will be at 7:20 am and sunset at 6:14 pm (CDT).
In Ontario, today, there will be 10h and 53min of daylight.
