Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

73°F

23°C

Humidity	83%
Wind Speed	S 9 mph
Barometer	29.82 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	30 Aug 4:55 am CDT

More Information:

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

Extended Forecast for

Mapleton IA

Overnight
Low: 74 °F
Slight Chance
T-storms
Sunday
High: 91 °F
Chance
T-storms then
Mostly Sunny
Sunday Night
Low: 72 °F
Increasing
Clouds
Monday
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 70 °F
Mostly Cloudy
then Chance
T-storms
Tuesday
High: 91 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday Night
Low: 71 °F
Slight Chance
T-storms
Wednesday
High: 91 °F
Mostly Sunny
Wednesday Night
Low: 70 °F
Mostly Clear
then Slight
Chance
T-storms

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 74. South wind around 8 mph, with gusts as high as 18 mph.

Sunday

A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 91. South southwest wind 8 to 11 mph, with gusts as high as 23 mph.

Sunday Night

Increasing clouds, with a low around 72. South wind 3 to 6 mph.

Monday

A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 90. Calm wind becoming northeast around 5 mph.

Monday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Light and variable wind.

Tuesday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 91. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 20%.

Tuesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southeast wind around 6 mph.

Wednesday

Mostly sunny, with a high near 91. Southwest wind around 6 mph.

Wednesday Night

A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. East wind 3 to 6 mph.

Thursday

Mostly sunny, with a high near 91. South wind 5 to 7 mph.

Thursday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southeast wind 3 to 6 mph.

Friday

Mostly sunny, with a high near 91. South wind 3 to 7 mph.