Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Partly Cloudy

66°F

19°C

Humidity	100%
Wind Speed	N 5 mph
Barometer	29.85 in
Dewpoint	66°F (19°C)
Visibility	9.00 mi
Last update	18 Jun 8:35 am CDT

More Information:

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

Extended Forecast for

Mapleton IA

Today
High: 78 °F
Chance
Showers and
Patchy Fog
then Showers
Likely
Tonight
Low: 57 °F
Slight Chance
T-storms then
Mostly Clear
Juneteenth
High: 88 °F
Sunny
Thursday Night
Low: 68 °F
Mostly Clear
then Chance
T-storms
Friday
High: 97 °F
Sunny then
Sunny and
Breezy
Friday Night
Low: 77 °F
Mostly Clear
and Breezy
Saturday
High: 99 °F
Hot and
Breezy
Saturday Night
Low: 77 °F
Clear and
Breezy
Sunday
High: 97 °F
Hot and
Breezy

Detailed Forecast

Today

A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. North northwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 57. North northwest wind 5 to 7 mph becoming light and variable in the evening.

Juneteenth

Sunny, with a high near 88. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. South wind 8 to 11 mph, with gusts as high as 23 mph.

Friday

Sunny and hot, with a high near 97. Breezy, with a south wind 11 to 18 mph, with gusts as high as 32 mph.

Friday Night

Mostly clear, with a low around 77. Breezy, with a south wind around 18 mph, with gusts as high as 33 mph.

Saturday

Sunny and hot, with a high near 99. Breezy, with a south wind 16 to 20 mph, with gusts as high as 33 mph.

Saturday Night

Clear, with a low around 77. Breezy, with a south wind 16 to 18 mph, with gusts as high as 33 mph.

Sunday

Sunny and hot, with a high near 97. Breezy, with a south wind 18 to 22 mph, with gusts as high as 37 mph.

Sunday Night

A chance of showers and thunderstorms. Mostly clear, with a low around 72. South wind 11 to 14 mph, with gusts as high as 26 mph.

Monday

A chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind 10 to 14 mph, with gusts as high as 23 mph.

Monday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Northeast wind 6 to 10 mph, with gusts as high as 20 mph.

Tuesday

Showers and thunderstorms likely. Partly sunny, with a high near 82. East northeast wind 6 to 9 mph becoming south southeast in the afternoon. Winds could gust as high as 16 mph.