On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Severe weather possible for parts of central Plains, mid-Atlantic to New England

The NWS Storm Prediction Center is forecasting a Slight Risk of severe thunderstorms Tuesday afternoon and evening across parts of the central Plains, from northwestern Kansas to southwestern Nebraska and extreme northeastern Colorado, as well across parts of the mid-Atlantic and eastern New England. Isolated strong to severe storms are possible in areas surrounding the Slight Risk areas.
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Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

A Few Clouds

70°F

21°C

Humidity 76%
Wind Speed N 3 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 4 Aug 9:53 am CDT

Detailed Forecast

Rest Of Today
Mostly sunny. High in the upper 70s. West wind near 5 mph shifting to the north in the afternoon.
Tonight
Partly cloudy through midnight...then mostly cloudy with a 20 percent chance of thunderstorms after midnight. Low in the lower 60s. East wind near 5 mph.
Wednesday
Partly sunny with a 40 percent chance of thunderstorms. High in the upper 70s. Southeast wind 5 to 10 mph.
Wednesday Night
Mostly cloudy. Low in the lower 60s. East wind 5 to 10 mph.
Thursday
Partly sunny. High in the upper 70s. Southeast wind 5 to 10 mph.
Thursday Night
Mostly cloudy with a 50 percent chance of thunderstorms. Low in the mid 60s.
Friday
Mostly cloudy. A 20 percent chance of thunderstorms in the morning. High in the upper 70s.
Friday Night
Mostly cloudy. Low in the mid 60s.
Saturday
Partly sunny with a 20 percent chance of thunderstorms. High in the upper 70s.
Saturday Night
Mostly cloudy with a 20 percent chance of thunderstorms. Low in the mid 60s.
Sunday
Partly sunny with a 20 percent chance of thunderstorms. High in the lower 80s.
Sunday Night
Mostly cloudy with a 20 percent chance of thunderstorms. Low in the mid 60s.
Monday
Partly sunny with a 20 percent chance of thunderstorms. High in the lower 80s.



  Click Map For Detailed Forecast
915 AM CDT TUE AUG 4 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database