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 >

Hazardous Weather Conditions

Current conditions at

Dubuque Regional Airport (KDBQ)

Lat: 42.4°NLon: 90.71°WElev: 1040ft.

Fair

68°F

20°C

Humidity 93%
Wind Speed Calm
Barometer 29.94 in (1013.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Aug 8:53 pm CDT
Extended Forecast for

Graf IA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 11pm and midnight.  Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm.  Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 59. Calm wind.

    Low: 59 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 11pm and midnight. Mostly cloudy, with a low around 63. West wind around 5 mph becoming calm. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 59. Calm wind.
Thursday
Sunny, with a high near 80. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Graf IA
 42.48°N 90.88°W (Elev. 830 ft)
8:16 pm CDT Aug 18, 2026
9pm CDT Aug 18, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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