National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

75°F

24°C

Humidity 50%
Wind Speed S 14 G 22 mph
Barometer 29.80 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 10 Oct 8:35 pm CDT
Extended Forecast for

Denison IA

  • Tonight

    Tonight: Clear, with a low around 66. Breezy, with a south wind 9 to 17 mph, with gusts as high as 29 mph.

    Low: 66 °F

    Clear and
    Breezy

  • Sunday

    Sunday: Increasing clouds, with a high near 87. South wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 87 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. South wind around 8 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 87. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. West wind 5 to 7 mph becoming light and variable after midnight.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers. Partly sunny, with a high near 67.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

Detailed Forecast

Tonight
Clear, with a low around 66. Breezy, with a south wind 9 to 17 mph, with gusts as high as 29 mph.
Sunday
Increasing clouds, with a high near 87. South wind 9 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 70. South wind around 8 mph, with gusts as high as 21 mph.
Columbus Day
Sunny, with a high near 87. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 57. West wind 5 to 7 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 74.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 53.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 67.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
5:51 pm CDT Oct 10, 2026
Forecast Valid:
8pm CDT Oct 10, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation