Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

N/A

Humidity	NA
Wind Speed	SE 5 mph
Barometer	30.20 in
Dewpoint	N/A
Visibility	8.00 mi
Last update	2 Aug 8:35 pm CDT

More Information:

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

Extended Forecast for

Mapleton IA

Tonight
Low: 58 °F
Areas Smoke
then Slight
Chance
T-storms
Sunday
High: 76 °F
Slight Chance
T-storms then
Mostly Cloudy
Sunday Night
Low: 58 °F
Mostly Cloudy
then Slight
Chance
T-storms
Monday
High: 78 °F
Slight Chance
T-storms
Monday Night
Low: 59 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 81 °F
Sunny
Tuesday Night
Low: 64 °F
Partly Cloudy
then Slight
Chance
T-storms
Wednesday
High: 85 °F
Slight Chance
T-storms
Wednesday Night
Low: 68 °F
Mostly Clear
then Slight
Chance
T-storms

Detailed Forecast

Tonight

A 10 percent chance of showers and thunderstorms after 5am. Areas of smoke before 9pm, then areas of smoke after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 58. South southeast wind around 6 mph.

Sunday

A 20 percent chance of showers and thunderstorms before 8am. Mostly cloudy, with a high near 76. South wind 6 to 9 mph, with gusts as high as 18 mph.

Sunday Night

A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. South southeast wind 3 to 6 mph. Chance of precipitation is 20%.

Monday

A slight chance of thunderstorms before 1pm, then 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 78. South wind 3 to 7 mph. Chance of precipitation is 20%.

Monday Night

A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 59. South southeast wind 3 to 6 mph. Chance of precipitation is 10%.

Tuesday

Sunny, with a high near 81. Light south southeast wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 17 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. South southeast wind around 7 mph, with gusts as high as 16 mph.

Wednesday

A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. South wind 6 to 10 mph, with gusts as high as 18 mph.

Wednesday Night

A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. South southeast wind around 6 mph.

Thursday

Sunny, with a high near 89. South wind 6 to 9 mph, with gusts as high as 17 mph.

Thursday Night

A slight chance of showers and thunderstorms. Mostly clear, with a low around 71. South southeast wind around 7 mph, with gusts as high as 16 mph.

Friday

Mostly sunny, with a high near 90. South wind 6 to 9 mph, with gusts as high as 18 mph.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 69. South southeast wind around 7 mph, with gusts as high as 16 mph.