Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Clarion (KCAV)

Lat: 42.75°NLon: 93.77°WElev: 1161ft.

A Few Clouds

79°F

26°C

Humidity 54%
Wind Speed N 8 mph
Barometer 30.08 in
Dewpoint 61°F (16°C)
Visibility NA
Heat Index80°F (27°C)
Last update 27 Aug 5:55 pm CDT
Extended Forecast for

Dows IA

  • Tonight

    Tonight: Mostly clear, with a low around 56. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Partly cloudy, with a low around 65. South wind 5 to 11 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 84. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. South southeast wind around 14 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 56. North northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 65. South wind 5 to 11 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. Breezy, with a south wind 13 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Partly cloudy, with a low around 72. South southeast wind around 14 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 90.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Dows IA
 42.65°N 93.5°W
5:26 pm CDT Aug 27, 2026
6pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database