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

Nor'easter Bringing Dangerous Coastal Conditions to the Mid-Atlantic; Pacific Storm to Impact the Southwest U.S.

A Nor'easter well off the East Coast will slowly track north this week and may gain some subtropical characteristics. Strong onshore winds will bring flooding, dangerous marine conditions, and beach erosion along the Mid-Atlantic coast. A Pacific storm will bring gusty winds, severe thunderstorms, and mountain snow to portions of California and the Southwest U.S. through Thursday. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Mostly Cloudy

54°F

12°C

Humidity 94%
Wind Speed S 7 mph
Barometer 30.19 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 21 Oct 6:55 am CDT
Extended Forecast for

Denison IA

  • Today

    Today: Sunny, with a high near 75. South southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. South southeast wind 3 to 6 mph.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 75. South southeast wind 7 to 14 mph, with gusts as high as 25 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 75. South southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 49. Calm wind.
Thursday
Sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. South southeast wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 75. South southeast wind 7 to 14 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 59.
Saturday
Partly sunny, with a high near 73.
Saturday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 50.
Sunday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 61.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Monday
Showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denison IA
 42.03°N 95.35°W
Last Update:
5:47 am CDT Oct 21, 2026
Forecast Valid:
7am CDT Oct 21, 2026-6pm CDT Oct 27, 2026
 
Forecast Discussion
 
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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