Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Overcast

59°F

15°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 30.23 in
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Last update 25 Sep 6:15 am CDT
Extended Forecast for

Mapleton IA

  • Today

    Today: Showers, mainly before 1pm.  High near 62. Southeast wind 6 to 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers then
    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am.  Steady temperature around 61. Southeast wind around 9 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  High near 66. South southeast wind 9 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers.  Cloudy, with a low around 60. Southeast wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 70. Calm wind becoming east around 5 mph in the afternoon.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 59. East southeast wind 3 to 5 mph.

    Low: 59 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 70. South southeast wind 3 to 8 mph. Winds could gust as high as 16 mph.

    High: 70 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 60. Southeast wind around 7 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Cloudy, with a high near 67. South southeast wind around 7 mph becoming west in the afternoon. Winds could gust as high as 16 mph.

    High: 67 °F

    Showers

Detailed Forecast

Today
Showers, mainly before 1pm. High near 62. Southeast wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Steady temperature around 61. Southeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and possibly a thunderstorm before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. High near 66. South southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Cloudy, with a low around 60. Southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, with a high near 70. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 59. East southeast wind 3 to 5 mph.
Monday
Partly sunny, with a high near 70. South southeast wind 3 to 8 mph. Winds could gust as high as 16 mph.
Monday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 60. Southeast wind around 7 mph.
Tuesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 67. South southeast wind around 7 mph becoming west in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 57. North northwest wind 3 to 5 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 66. North wind 5 to 8 mph, with gusts as high as 18 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. East wind around 5 mph becoming light and variable in the evening.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 66. South southeast wind 5 to 8 mph becoming north northwest in the afternoon. Winds could gust as high as 16 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Mapleton IA
 42.18°N 95.79°W (Elev. 1135 ft)
6:12 am CDT Sep 25, 2026
6am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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