Allen, Iowa Weather
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Weather Forecast for Allen, Iowa : Harrison County
Issued: 4:35 pm CDT Aug 2, 2025 Latitude: 41.8049883 Longitude: -95.8186194 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Smoke on Tonight Mostly Cloudy on Sunday 10% chance of thunderstorms on Monday Sunny on Tuesday 10% chance of thunderstorms on Wednesday Sunny on Thursday Mostly Sunny on Friday 10% chance of thunderstorms on Saturday
Low: 58°F High: 75°F High: 77°F High: 80°F High: 85°F High: 89°F High: 90°F High: 87°F
Low: 58°F Low: 59°F Low: 65°F Low: 68°F Low: 71°F Low: 70°F  
Smoke Mostly Cloudy Thunderstorms Sunny Thunderstorms Sunny Mostly Sunny Thunderstorms
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Current Conditions at
DENISON - (KDNS)
Clear
as of 4:35 PM CDST
Visibility: 7 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
8 MPH
Gust: 15 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
HARLAN - (KHNR)
77°
Mostly Clear
as of 4:35 PM CDST
Rel. Humidity: 57%
Dew Point: 61°F
Visibility: 9 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
8 MPH
150° Southeast
Cloud Level(s): Few at 4000ft
Smoke on Tonight Tonight... Areas of smoke before 9pm, then areas of smoke after 10pm. Mostly cloudy, with a low around 58. South southeast wind 6 to 8 mph.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 75. South southeast wind 7 to 10 mph, with gusts as high as 18 mph.

20% chance of thunderstorms Sunday Night Sunday Night... A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. South southeast wind around 6 mph. Chance of precipitation is 20%.

10% chance of thunderstorms Monday Monday... A slight chance of thunderstorms before 7am. Partly sunny, with a high near 77. South southeast wind around 7 mph. Chance of precipitation is 10%.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 59. Southeast wind around 6 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 80. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.

20% chance of thunderstorms Tuesday Night Tuesday Night... A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Southeast wind around 9 mph, with gusts as high as 16 mph.

10% chance of thunderstorms Wednesday Wednesday... A slight chance of showers and thunderstorms before 1pm. Sunny, with a high near 85. South wind 8 to 10 mph, with gusts as high as 20 mph.

10% chance of thunderstorms Wednesday Night Wednesday Night... A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 68. South southeast wind around 8 mph.

Sunny on Thursday Thursday... Sunny, with a high near 89. South wind 7 to 10 mph, with gusts as high as 18 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 71. South southeast wind around 9 mph, with gusts as high as 16 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 90. South wind 9 to 11 mph, with gusts as high as 20 mph.

10% chance of thunderstorms Friday Night Friday Night... A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 9 mph, with gusts as high as 16 mph.

10% chance of thunderstorms Saturday Saturday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. South southeast wind around 9 mph, with gusts as high as 17 mph.

Sun Almanac for Allen, Iowa
Sunrise: 06:19 AM
Sunset: 8:40 PM
Civil Sunrise:05:48 AM
Civil Sunset: 9:11 PM
Nautical Sunrise: 05:09 AM
Nautical Sunset: 9:50 PM
Astro Sunrise: 04:26 AM
Astro Sunset: 10:33 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.