Weather forecast for 10 daysPetersburg, IN

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 139°
  • Humidity: 43%
  • UV index: 5
  • Sunrise: 8:01 am EDT
  • Sunset: 7:07 pm EDT
  • ▼
Today, on Sunday, October 18, the outlook remains bright and sunny.
Day and night temperatures will contrast sharply, from a maximum of a comfortable 66.2°F to a minimum of an icy 37.4°F.
The maximum temperature will align with October's usual high of 66.6°F.
Sunrise was at 8:01 am and sunset will be at 7:07 pm; the daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest period: Sunday - Monday 77°C.
Coldest day: today 66°C.

Chance of precipitation

Highest chance: Wednesday 7%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSE 139°
  • Humidity: 43%
  • UV index: 5
  • Sunrise: 8:01 am EDT
  • Sunset: 7:07 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphESE 119°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 8:02 am EDT
  • Sunset: 7:05 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphNE 46°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:03 am EDT
  • Sunset: 7:04 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphNE 39°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 8:04 am EDT
  • Sunset: 7:02 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphNE 35°
  • Humidity: 59%
  • UV index: 4
  • Sunrise: 8:05 am EDT
  • Sunset: 7:01 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphE 79°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:06 am EDT
  • Sunset: 7:00 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphESE 111°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 8:07 am EDT
  • Sunset: 6:59 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphS 178°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 8:08 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphS 191°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 8:09 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 75°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphE 94°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 8:10 am EDT
  • Sunset: 6:55 pm EDT
  • ▼
In the days ahead, a combination of bright and gloomy weather is anticipated.
Rain is not forecasted in Petersburg in the upcoming period.
In the upcoming days, the highest temperature will vary between 66.2°F and 77°F, while the minimum temperature is forecast to range between 37.4°F and 48.2°F.
The warmest days will be next Sunday and Monday, with a maximum of 77°F; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 15:18:59 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, sun-filled conditions are expected to persist.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 66.6°F in October. The lowest temperature today will be notably lower than the average low of 48.9°F.

On Sunday, in Petersburg, sunrise was at 8:01 am and sunset will be at 7:07 pm (EDT).

Today, the daylight will last for 11h and 5min.