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

Hazardous Weather Conditions

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Mostly Cloudy

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 29.77 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 17 Jun 2:55 am CDT
Extended Forecast for

Calmar IA

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. Southwest wind around 8 mph.

    Low: 65 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 79. Northwest wind 3 to 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Low around 62. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 76. North wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. North wind 6 to 9 mph.

    Low: 59 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. West wind 6 to 11 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Southwest wind 7 to 9 mph.

    Low: 65 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 86 °F

    Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Breezy, with a south wind around 16 mph, with gusts as high as 24 mph.

    Low: 72 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. Southwest wind around 8 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 79. Northwest wind 3 to 7 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms before 4am, then showers and possibly a thunderstorm, mainly after 4am. Low around 62. Northwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 76. North wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Partly cloudy, with a low around 59. North wind 6 to 9 mph.
Juneteenth
Sunny, with a high near 83. West wind 6 to 11 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Southwest wind 7 to 9 mph.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Breezy, with a south wind around 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 91. Breezy, with a southwest wind around 16 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 74. Breezy, with a south wind 14 to 17 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 91. Breezy, with a south wind 17 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73. Breezy, with a south wind 15 to 17 mph, with gusts as high as 26 mph.
Monday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 87. Southwest wind around 15 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Calmar IA
 43.17°N 91.89°W
Last Update:
2:13 am CDT Jun 17, 2025
Forecast Valid:
3am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation