Weather forecast for 10 daysHarper, IN

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSE 132°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:55 am EDT
  • Sunset: 6:59 pm EDT
  • ▼
Tomorrow, on Sunday, October 18, the forecast calls for abundant sunshine.
Dramatic temperature shifts from a high of an enjoyable 66.2°F to a low of a cold 35.6°F are forecasted.
Tomorrow's high is predicted to coincide with the typical October maximum of 64°F.
Sunrise will be at 7:55 am and sunset at 6:59 pm; tomorrow's daylight will last for 11h and 4min.

10-day overview

Daily temperatures

Warmest period: Saturday - Monday 73°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: Wednesday - Thursday 7%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 34°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphENE 74°
  • Humidity: 81%
  • UV index: 0
  • Sunrise: 7:54 am EDT
  • Sunset: 7:01 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSE 132°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:55 am EDT
  • Sunset: 6:59 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphENE 74°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:56 am EDT
  • Sunset: 6:58 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphENE 63°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:57 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphNNE 33°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:58 am EDT
  • Sunset: 6:55 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphNE 37°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:59 am EDT
  • Sunset: 6:54 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphENE 73°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 8:00 am EDT
  • Sunset: 6:52 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 73°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphE 95°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:01 am EDT
  • Sunset: 6:51 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSE 126°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 8:02 am EDT
  • Sunset: 6:50 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphNE 37°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 8:03 am EDT
  • Sunset: 6:48 pm EDT
  • ▼
Throughout the next ten days, primarily dry and sunny and occasionally dull weather is predicted.
Rainfall is not anticipated in Harper in the upcoming days.
In the upcoming days, the highest temperature will vary between 66.2°F and 73.4°F, while the minimum temperature is forecast to range between 33.8°F and 44.6°F.
The warmest days will be next Saturday through next Monday, with a maximum of 73.4°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 66.2°F.
Updated: Oct 17, 2026 @ 22:33:41 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunny skies are in store, with excellent visibility.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 35.6°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature tomorrow will be significantly lower than the average low of 47.1°F.

On Sunday, in Harper, sunrise will be at 7:55 am and sunset at 6:59 pm (EDT).

In Harper, tomorrow, there will be 11h and 4min of daylight.