Active Weather Pattern Expected From the Midwest to the Southern Plains; Dangerous Heat Likely in Southern Texas

A strong storm system will bring numerous to widespread severe thunderstorms across portions of the Midwest and Upper Great Lakes Tuesday. Tornadoes (a few strong), damaging winds and large hail are expected. Record high temperatures will be possible over southern Texas the next several days. This may lead to dangerous heat concerns especially for areas already without power. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Decorah (KDEH)

Lat: 43.28°NLon: 91.73°WElev: 1158ft.

Overcast

55°F

13°C

Humidity	100%
Wind Speed	W 9 G 20 mph
Barometer	29.54 in
Dewpoint	55°F (13°C)
Visibility	8.00 mi
Wind Chill	53°F (12°C)
Last update	22 May 1:35 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Calmar IA

Overnight
Low: 51 °F
Cloudy and
Breezy
Wednesday
High: 69 °F
Mostly Sunny
and Breezy
Wednesday Night
Low: 50 °F
Mostly Clear
Thursday
High: 75 °F
Sunny
Thursday Night
Low: 57 °F
Mostly Clear
then Chance
T-storms
Friday
High: 70 °F
Showers
Friday Night
Low: 42 °F
Chance
T-storms
Saturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 47 °F
Partly Cloudy
then Slight
Chance
Showers

Detailed Forecast

Overnight

Cloudy, with a low around 51. Breezy, with a west wind 15 to 17 mph, with gusts as high as 33 mph.

Wednesday

Mostly sunny, with a high near 69. Breezy, with a west wind 15 to 17 mph, with gusts as high as 26 mph.

Wednesday Night

Mostly clear, with a low around 50. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

Thursday

Sunny, with a high near 75. South wind 6 to 10 mph, with gusts as high as 18 mph.

Thursday Night

A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. Southeast wind 7 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Showers and possibly a thunderstorm. High near 70. South wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 42. West wind 10 to 14 mph.

Saturday

Mostly sunny, with a high near 65. West wind around 11 mph.

Saturday Night

A 20 percent chance of showers after 1am. Partly cloudy, with a low around 47. West wind around 7 mph becoming south after midnight.

Sunday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 69. East wind 6 to 10 mph. Chance of precipitation is 20%.

Sunday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 49. Northeast wind around 7 mph.

Memorial Day

A 30 percent chance of showers. Partly sunny, with a high near 68. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.

Monday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 49. North wind 8 to 10 mph.

Tuesday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 70. Northwest wind 9 to 13 mph.