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

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

64°F

18°C

Humidity 100%
Wind Speed SE 5 mph
Barometer 29.94 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 3:15 am CDT
Extended Forecast for

Arion IA

  • Overnight

    Overnight: Partly cloudy, with a low around 62. Light south southeast wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 87. South wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 67. South wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 67 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 79. Light north wind becoming north northeast 5 to 9 mph in the morning. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 58. North northeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 55. Chance of precipitation is 10%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. Light south southeast wind.
Monday
Mostly sunny, with a high near 87. South wind 6 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 67. South wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 23 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 79. Light north wind becoming north northeast 5 to 9 mph in the morning. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 58. North northeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers and thunderstorms before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 55. Chance of precipitation is 10%.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arion IA
 41.94°N 95.47°W
Last Update:
3:02 am CDT Aug 3, 2026
Forecast Valid:
3am CDT Aug 3, 2026-6pm CDT Aug 9, 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