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

Thunderstorms and Heavy Rainfall in the Mid-Atlantic; Fire Weather Concerns in the West

Thunderstorms are expected to bring heavy rain and potential significant flash and urban flooding to the Mid-Atlantic on Thursday, especially along the I-95 urban corridor. Dry conditions, gusty winds, and isolated dry thunderstorms will continue to bring a critical fire weather threat to the northwestern Great Basin into the interior Northwest through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Overcast

N/A

Humidity NA
Wind Speed NE 10 G 16 mph
Barometer 30.19 in
Dewpoint N/A
Visibility 8.00 mi
Last update 31 Jul 12:15 am CDT
Extended Forecast for

Arion IA

  • Overnight

    Overnight: A 20 percent chance of showers before 3am. Mostly cloudy, with a low around 62. Northeast wind around 7 mph.

    Low: 62 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 76. East northeast wind 7 to 10 mph.

    High: 76 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. East northeast wind 3 to 7 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. Calm wind becoming east 5 to 7 mph in the morning.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. East wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.

    High: 75 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers before 3am. Mostly cloudy, with a low around 62. Northeast wind around 7 mph.
Thursday
Partly sunny, with a high near 76. East northeast wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 53. East northeast wind 3 to 7 mph.
Friday
Sunny, with a high near 74. Calm wind becoming east 5 to 7 mph in the morning.
Friday Night
Partly cloudy, with a low around 55. East wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 75.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arion IA
 41.94°N 95.47°W
Last Update:
10:49 pm CDT Jul 30, 2025
Forecast Valid:
12am CDT Jul 31, 2025-6pm CDT Aug 6, 2025
 
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