Weather forecast for 10 daysSaint John, IN

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 55°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 217°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:04 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
On Saturday, in Saint John, clear skies and sunshine are anticipated.
The temperature scale will run from a maximum of a moderate 55.4°F to a minimum of an icy 37.4°F.
Today, the predicted maximum will be slightly cooler than October's regular high of 61.5°F.
Sunrise was at 7:04 am and sunset will be at 6:06 pm; the daylight will last for 11h and 2min.

Sunday Oct 18, 2026

  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphSSW 199°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:05 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
On Sunday, October 18, the forecast calls for abundant sunshine.
Temperatures will see a substantial oscillation, reaching a high of a breezy 64.4°F and dropping to a low of a cold 35.6°F.
The anticipated maximum temperature will closely reflect October's average high of 61.5°F.
Sunrise will be at 7:05 am and sunset at 6:04 pm; tomorrow's daylight will last for 10h and 59min.

10-day overview

Daily temperatures

Maximum temperature: 73°C.
Coldest day: today 55°C.

Chance of precipitation

Highest chance: Monday 26.10. 13%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 55°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSW 217°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:04 am CDT
  • Sunset: 6:06 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 64°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 13mphSSW 199°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:05 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 185°
  • Humidity: 52%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:02 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphESE 112°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:07 am CDT
  • Sunset: 6:01 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 72°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphS 173°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:08 am CDT
  • Sunset: 6:00 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphESE 118°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 5:58 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphESE 115°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:11 am CDT
  • Sunset: 5:57 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 72°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSE 140°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:12 am CDT
  • Sunset: 5:55 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphS 183°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:13 am CDT
  • Sunset: 5:54 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 70°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 7mphNNW 342°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:14 am CDT
  • Sunset: 5:52 pm CDT
  • ▼
Weather patterns suggest that a combination of clear and cloud-filled weather is expected.
Rainfall is not forecasted in Saint John in the upcoming period.
Temperature fluctuation will be noticeable throughout the forecast window. Highs will range from 55.4°F to 73.4°F, while the difference in minimum temperatures will be also substantial, as the minimum temperature is expected to range between 35.6°F and 51.8°F.
The warmest days in Saint John, Indiana, will be Thursday, Friday and next Sunday, with a maximum of 73.4°F; today is the coldest day, with a maximum temperature of 55.4°F.
Updated: Oct 17, 2026 @ 18:36:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sunny conditions are expected to continue.

Today, the highest temperature will be 55.4°F, while the lowest temperature will be 37.4°F.
The highest temperature will be slightly cooler than the average maximum of 61.5°F in October. The lowest temperature today will be notably lower than the average low of 46.8°F.

On Saturday, in Saint John, sunrise was at 7:04 am and sunset will be at 6:06 pm (CDT).

Today, the daylight will last for 11h and 2min.

On Sunday, uninterrupted sunshine is anticipated.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 35.6°F.
The maximum temperature will be in line with the average highest temperature of 61.5°F in October. The lowest temperature tomorrow will be significantly lower than the average low of 46.8°F.

On Sunday, in Saint John, sunrise will be at 7:05 am and sunset at 6:04 pm (CDT).

In Saint John, tomorrow, there will be 10h and 59min of daylight.