Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Washington Regional Airport (KFYG)

Lat: 38.59°NLon: 90.99°WElev: 489ft.

Mostly Cloudy

75°F

24°C

Humidity 100%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 75°F (24°C)
Visibility 9.00 mi
Last update 19 Aug 10:15 pm CDT
Extended Forecast for

5 Miles NW Olney MO

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 68. Light north wind.  Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms then
    Slight Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 83. North wind 3 to 5 mph.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm.  Mostly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers.  Mostly sunny, with a high near 82.

    High: 82 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 63.

    Low: 63 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Light north wind. Chance of precipitation is 50%.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. North wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 63. Calm wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Light and variable wind.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 65. Calm wind.
Saturday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 63.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 82.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Olney MO
 39.13°N 91.32°W (Elev. 722 ft)
9:46 pm CDT Aug 19, 2026
10pm CDT Aug 19, 2026-6pm CDT Aug 26, 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