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

Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Indianapolis International Airport (KIND)

Lat: 39.73°NLon: 86.28°WElev: 790ft.

Overcast

68°F

20°C

Humidity 93%
Wind Speed S 12 mph
Barometer 29.92 in (1012.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 12 Aug 1:54 am EDT
Extended Forecast for

Indianapolis IN

Flood Watch August 12, 02:53am until August 13, 12:00am
Flood Advisory until August 12, 03:30am
Click here for hazard details and duration
Flood Watch
Flood Advisory
  •  
    Flood Watch August 12, 02:53am until August 13, 12:00am
    Flood Advisory until August 12, 03:30am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 69 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 84. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then scattered showers between 11pm and 5am, then scattered showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely then
    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then scattered showers and thunderstorms after 5pm. Mostly cloudy, with a high near 83. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Scattered
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 71. East southeast wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    Showers

  • Friday

    Friday: Scattered showers and thunderstorms before 8am, then scattered showers between 8am and 2pm. Mostly cloudy, with a high near 85. North wind 3 to 5 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Isolated showers and thunderstorms before 11pm, then isolated showers between 11pm and 2am. Partly cloudy, with a low around 71. East northeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Isolated
    T-storms then
    Isolated
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. East southeast wind around 6 mph.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm, mainly before 5am, then scattered showers and thunderstorms after 5am. Patchy fog after 4am. Steady temperature around 69. South southeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 84. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 11pm, then scattered showers between 11pm and 5am, then scattered showers and thunderstorms after 5am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Scattered showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then scattered showers and thunderstorms after 5pm. Mostly cloudy, with a high near 83. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 71. East southeast wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Scattered showers and thunderstorms before 8am, then scattered showers between 8am and 2pm. Mostly cloudy, with a high near 85. North wind 3 to 5 mph. Chance of precipitation is 40%.
Friday Night
Isolated showers and thunderstorms before 11pm, then isolated showers between 11pm and 2am. Partly cloudy, with a low around 71. East northeast wind around 5 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. East southeast wind around 6 mph.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. South wind around 6 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90. West wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
A 10 percent chance of showers. Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Indianapolis IN
 39.77°N 86.16°W (Elev. 728 ft)
Last Update:
2:45 am EDT Aug 12, 2026
Forecast Valid:
2am EDT Aug 12, 2026-6pm EDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation