National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portland Municipal Airport (KPLD)

Lat: 40.45°NLon: 84.99°WElev: 925ft.

Fair

58°F

14°C

Humidity 68%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 Jun 4:55 am EDT
Extended Forecast for

Petroleum IN

  • Today

    Today: A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 76. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Low around 59. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 59 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. North wind 5 to 10 mph becoming light after midnight.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76. Calm wind becoming north around 5 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 77.

    High: 77 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    T-storms

Detailed Forecast

Today
A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 76. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Low around 59. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Partly cloudy, with a low around 55. North wind 5 to 10 mph becoming light after midnight.
Tuesday
Sunny, with a high near 76. Calm wind becoming north around 5 mph.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 77.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 59.
Thursday
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 78.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Petroleum IN
 40.62°N 85.16°W (Elev. 843 ft)
Last Update:
2:32 am EDT Jun 21, 2026
Forecast Valid:
5am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation