Coster, Iowa Weather
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Weather Forecast for Coster, Iowa : Butler County
Issued: 2:34 am CDT Jun 3, 2025 Latitude: 42.671646 Longitude: -92.7115827 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
30% chance of thunderstorms on Overnight 90% chance of thunderstorms on Tuesday Sunny on Wednesday 20% chance of on Thursday Partly Sunny on Friday Mostly Sunny on Saturday 50% chance of rain on Sunday Sunny on Monday
Low: 69°F High: 70 °F High: 77°F High: 77°F High: 74°F High: 77°F High: 78°F High: 76°F
Low: 53°F Low: 55°F Low: 56°F Low: 55°F Low: 58°F Low: 55°F  
Thunderstorms Thunderstorms Sunny Partly Sunny Partly Sunny Mostly Sunny Rain Sunny
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Current Conditions at
WATERLOO - (KALO)
72°
Clear
as of 4:54 AM CDST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: VFR
Wind Data
9 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
CHARLES CITY - (KCCY)
68°
Mostly Cloudy
as of 4:55 AM CDST
Rel. Humidity: 93%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: VFR
Wind Data
6 MPH
180° South
Cloud Level(s): Scattered at 6500ft, Scattered at 16000ft, Broken at 19000ft
Current Conditions at
OELWEN - (KOLZ)
70°
Clear
as of 4:55 AM CDST
Rel. Humidity: 88%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
12 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
MARSHALLTOWN ARPT - (KMIW)
72°
Clear
as of 4:53 AM CDST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
12 MPH
170° South
Cloud Level(s): Clear
30% chance of thunderstorms Overnight Overnight... A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 69. South wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
90% chance of thunderstorms Tuesday Tuesday... Showers and thunderstorms likely, then showers and possibly a thunderstorm after 9am. Temperature rising to near 70 by 11am, then falling to around 62 during the remainder of the day. Breezy, with a south wind 11 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
50% chance of rain Tuesday Night Tuesday Night... A 50 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 53. North wind 8 to 15 mph, with gusts as high as 22 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Sunny on Wednesday Wednesday... Sunny, with a high near 77. North wind around 8 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 55. North northeast wind around 5 mph becoming calm in the evening.
20% chance of Thursday Thursday... A 20 percent chance of showers after 1pm. Partly sunny, with a high near 77.
20% chance of thunderstorms Thursday Night Thursday Night... A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.
Partly Sunny on Friday Friday... Partly sunny, with a high near 74.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 55.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 77.
30% chance of thunderstorms Saturday Night Saturday Night... A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
50% chance of rain Sunday Sunday... A 50 percent chance of showers. Mostly sunny, with a high near 78.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 55.
Sunny on Monday Monday... Sunny, with a high near 76.
Current Radar Image


Sun Almanac for Coster, Iowa
Sunrise: 05:34 AM
Sunset: 8:44 PM
Civil Sunrise:05:00 AM
Civil Sunset: 9:18 PM
Nautical Sunrise: 04:16 AM
Nautical Sunset: 10:02 PM
Astro Sunrise: 03:23 AM
Astro Sunset: 10:55 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.