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.

63°F

17°C

Humidity 94%
Wind Speed E 3 mph
Barometer 29.87 in
Dewpoint 61°F (16°C)
Visibility NA
Last update 21 Jun 1:55 am CDT
Extended Forecast for

Mapleton IA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Steady temperature around 61. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 10am. The rain could be heavy at times. Cloudy, then gradually becoming mostly sunny, with a high near 69. East wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 69 °F

    Heavy Rain
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers between 11pm and 1am. Mostly cloudy, with a low around 52. East wind 6 to 11 mph becoming light northeast in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76. Light northeast wind.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. East southeast wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. Southwest wind 3 to 7 mph.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 77. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Steady temperature around 61. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely, mainly before 10am. The rain could be heavy at times. Cloudy, then gradually becoming mostly sunny, with a high near 69. East wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
A slight chance of showers between 11pm and 1am. Mostly cloudy, with a low around 52. East wind 6 to 11 mph becoming light northeast in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 76. Light northeast wind.
Monday Night
Mostly cloudy, with a low around 56. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. Southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 77. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 54. North northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 77. Light north wind.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Light and variable wind.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. Light east southeast wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southeast wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Southeast wind 9 to 15 mph, with gusts as high as 26 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mapleton IA
 42.16°N 95.79°W (Elev. 1112 ft)
Last Update:
1:35 am CDT Jun 21, 2026
Forecast Valid:
2am CDT Jun 21, 2026-6pm CDT Jun 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