Coster, Iowa Weather
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Weather Forecast for Coster, Iowa : Butler County
Issued: 2:51 pm CDT Aug 2, 2025 Latitude: 42.671646 Longitude: -92.7115827 View on Google Maps

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This Afternoon Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Sunny on This Afternoon Smoke on Tonight Smoke on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Sunny on Thursday Mostly Sunny on Friday
High: 77°F Low: 52°F High: 76°F High: 78°F High: 80°F High: 84°F High: 86°F High: 87°F
Low: 55°F Low: 59°F Low: 62°F Low: 66°F Low: 69°F  
Mostly Sunny Smoke Smoke Mostly Sunny Mostly Sunny Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
WATERLOO - (KALO)
79°
Mostly Clear
as of 3:54 PM CDST
Rel. Humidity: 41%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
6 MPH
Cloud Level(s): Few at 5000ft
Current Conditions at
CHARLES CITY - (KCCY)
73°
Clear
as of 4:15 PM CDST
Rel. Humidity: 56%
Dew Point: 57°F
Visibility: 9 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
6 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
OELWEN - (KOLZ)
73°
Clear
as of 4:15 PM CDST
Rel. Humidity: 53%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
5 MPH
130° Southeast
Cloud Level(s): Clear
Current Conditions at
MARSHALLTOWN ARPT - (KMIW)
75°
Clear
as of 3:53 PM CDST
Rel. Humidity: 53%
Dew Point: 57°F
Visibility: 7 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
5 MPH
090° East
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 77. Southeast wind around 7 mph.

Smoke on Tonight Tonight... Areas of smoke. Partly cloudy, with a low around 52. Southeast wind around 6 mph becoming calm in the evening.

Smoke on Sunday Sunday... Areas of smoke before 11am. Mostly sunny, with a high near 76. Calm wind becoming south 5 to 7 mph in the morning.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 55. South southeast wind around 5 mph becoming calm in the evening.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 78. Calm wind becoming south southeast 5 to 7 mph in the morning.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 59.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 80.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 62.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 84.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 66.

Sunny on Thursday Thursday... Sunny, with a high near 86.

30% chance of thunderstorms Thursday Night Thursday Night... A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 87.

Current Radar Image


Sun Almanac for Coster, Iowa
Sunrise: 06:04 AM
Sunset: 8:30 PM
Civil Sunrise:05:33 AM
Civil Sunset: 9:02 PM
Nautical Sunrise: 04:53 AM
Nautical Sunset: 9:41 PM
Astro Sunrise: 04:09 AM
Astro Sunset: 10:25 PM
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