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

Barry Fading Away; Attention Turns To Major Summer Heat Wave

Post-Tropical Barry continues to steadily weaken and will fade away over the next day or two. The decaying system may still produce very heavy rainfall and possible flash flooding from the Lower Mississippi Valley to the Ohio Valley. Attention on the weather then shifts from Barry to a major summer heat wave mid to late week into the weekend, across much of the Central and Eastern states. Read More >

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Fair

70°F

21°C

Humidity 94%
Wind Speed Vrbl 6 G 12 mph
Barometer 29.87 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Jul 5:15 am CDT
Extended Forecast for

Decorah IA

Excessive Heat Watch July 18, 12:00pm until July 20, 07:00pm
Click here for hazard details and duration
Excessive Heat Watch

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 6 mph.

    Slight Chance
    T-storms

    Low: 69 °F

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Southwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 86 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Calm wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms then
    Slight Chance
    T-storms

    Low: 69 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 8am and 1pm. Partly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming south 5 to 7 mph in the afternoon.

    Chance
    T-storms

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 73. South wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    T-storms
    Likely

    Low: 73 °F

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Southwest wind 8 to 10 mph.

    Slight Chance
    T-storms

    High: 90 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 74. Southwest wind 6 to 8 mph.

    Slight Chance
    T-storms

    Low: 74 °F

  • Friday

    Friday: Sunny, with a high near 92. Southwest wind 7 to 9 mph.

    Sunny

    High: 92 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southwest wind 3 to 7 mph.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 73 °F

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 6 mph.
Tuesday
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Southwest wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Calm wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 8am and 1pm. Partly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 73. South wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Southwest wind 8 to 10 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 74. Southwest wind 6 to 8 mph.
Friday
Sunny, with a high near 92. Southwest wind 7 to 9 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Southwest wind 3 to 7 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Southwest wind 3 to 6 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind 3 to 6 mph.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Southwest wind 3 to 6 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Calm wind becoming north around 5 mph after midnight.
Monday
Mostly sunny, with a high near 82. North wind around 6 mph.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Decorah IA
 43.3°N 91.79°W
Last Update:
3:14 am CDT Jul 16, 2019
Forecast Valid:
5am CDT Jul 16, 2019-6pm CDT Jul 22, 2019
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation