Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Columbia, Columbia Regional Airport (KCOU)

Lat: 38.82°NLon: 92.22°WElev: 889ft.

A Few Clouds

76°F

24°C

Humidity 85%
Wind Speed Calm
Barometer 29.94 in (1013.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 18 Aug 7:54 pm CDT
Extended Forecast for

7 Miles NNE Portland MO

  • Tonight

    Tonight: Showers and thunderstorms, mainly after 3am.  Low around 66. Calm wind becoming north 5 to 7 mph after midnight.  Chance of precipitation is 80%.

    Low: 66 °F

    Mostly Clear
    then T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 9am.  High near 79. East wind 5 to 7 mph.  Chance of precipitation is 90%.

    High: 79 °F

    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 64. Northeast wind around 6 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 81. Northeast wind 3 to 5 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms, mainly after 3am. Low around 66. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 80%.
Wednesday
Showers and thunderstorms, mainly before 9am. High near 79. East wind 5 to 7 mph. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Northeast wind around 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 81. Northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 62. Calm wind.
Friday
Sunny, with a high near 85.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Portland MO
 38.81°N 91.65°W (Elev. 807 ft)
5:06 pm CDT Aug 18, 2026
8pm CDT Aug 18, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database