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

Hazardous Weather Conditions

Current conditions at

Storm Lake (KSLB)

Lat: 42.6°NLon: 95.23°WElev: 1489ft.

Fair

63°F

17°C

Humidity 77%
Wind Speed E 9 mph
Barometer 29.72 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Apr 11:55 am CDT
Extended Forecast for

Arthur IA

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly sunny, with a high near 78. East northeast wind around 10 mph.

    High: 78 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a slight chance of showers. Mostly cloudy, with a low around 51. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 48. North northwest wind around 5 mph becoming south southwest after midnight. Chance of precipitation is 40%.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 79. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: A chance of rain showers before 4am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 50%.

    Low: 32 °F

    Breezy.
    Chance
    T-storms then
    Chance
    Rain/Snow

  • Saturday

    Saturday: A 30 percent chance of snow showers before 1pm. Partly sunny, with a high near 48. Breezy.

    High: 48 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly sunny, with a high near 78. East northeast wind around 10 mph.
Tonight
Showers and thunderstorms likely before 4am, then a slight chance of showers. Mostly cloudy, with a low around 51. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 71. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 48. North northwest wind around 5 mph becoming south southwest after midnight. Chance of precipitation is 40%.
Thursday
Sunny, with a high near 79. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 57. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Breezy.
Friday Night
A chance of rain showers before 4am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 32. Breezy. Chance of precipitation is 50%.
Saturday
A 30 percent chance of snow showers before 1pm. Partly sunny, with a high near 48. Breezy.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arthur IA
 42.33°N 95.35°W (Elev. 1348 ft)
Last Update:
11:33 am CDT Apr 14, 2026
Forecast Valid:
12pm CDT Apr 14, 2026-6pm CDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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