Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fog

61°F

16°C

Humidity	100%
Wind Speed	SE 6 mph
Barometer	30.02 in
Dewpoint	61°F (16°C)
Visibility	0.15 mi
Last update	18 Sep 7:15 am CDT

More Information:

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

Extended Forecast for

Mapleton IA

Today
High: 76 °F
Patchy Fog
then Chance
Showers
Tonight
Low: 57 °F
Chance
T-storms
Friday
High: 72 °F
Mostly Cloudy
then Slight
Chance
T-storms
Friday Night
Low: 56 °F
Chance
T-storms
Saturday
High: 75 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday Night
Low: 58 °F
Mostly Cloudy
then Chance
Showers
Sunday
High: 77 °F
Chance
Showers
Sunday Night
Low: 59 °F
Partly Cloudy
then Slight
Chance
T-storms
Monday
High: 79 °F
Partly Sunny
then Chance
T-storms

Detailed Forecast

Today

A chance of showers, with thunderstorms also possible after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 76. Calm wind becoming south southwest 5 to 7 mph in the morning. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 57. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.

Friday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56. Calm wind. New rainfall amounts between a quarter and half of an inch possible.

Saturday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.

Saturday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. Light south southeast wind. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 77. South southwest wind 3 to 7 mph.

Sunday Night

A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 59. Light south wind.

Monday

A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. Calm wind becoming south around 6 mph in the afternoon.

Monday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 53. Northwest wind 3 to 5 mph.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 72. Northwest wind 5 to 8 mph, with gusts as high as 16 mph.

Tuesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51. North wind 3 to 6 mph.