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

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair

70°F

21°C

Humidity 64%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 57°F (14°C)
Visibility NA
Last update 20 Jun 8:35 pm CDT
Extended Forecast for

Mapleton IA

  • Tonight

    Tonight: Showers likely, then showers and possibly a thunderstorm after 1am. Low around 57. East wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers
    Likely then
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. East wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53. East wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 22 mph.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. Light east wind.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Light east southeast wind.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 17 mph.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55. West southwest wind 3 to 8 mph. Winds could gust as high as 16 mph.

    Low: 55 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 76. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, then showers and possibly a thunderstorm after 1am. Low around 57. East wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. East wind 11 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Mostly cloudy, with a low around 53. East wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 22 mph.
Monday
Mostly sunny, with a high near 75. Light east wind.
Monday Night
Partly cloudy, with a low around 55. Light east southeast wind.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 17 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 55. West southwest wind 3 to 8 mph. Winds could gust as high as 16 mph.
Wednesday
Sunny, with a high near 76. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 53. North northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 77. Light north wind.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56. North northeast wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Light southeast wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southeast wind 6 to 9 mph, with gusts as high as 17 mph.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. South southeast wind 7 to 13 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Mapleton IA
 42.18°N 95.76°W (Elev. 1198 ft)
Last Update:
7:35 pm CDT Jun 20, 2026
Forecast Valid:
8pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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