Hazardous Weather Conditions
Current conditions at
Marshalltown, Marshalltown Municipal Airport (KMIW)
Lat: 42.11°NLon: 92.92°WElev: 971ft.
Fog/Mist
58°F
14°C
| Humidity | 97% |
| Wind Speed | S 7 mph |
| Barometer | 29.69 in (1004.9 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 4.00 mi |
| Last update | 15 Apr 6:53 am CDT |
Extended Forecast for
Grundy Center IA
Today
High: 69 °F
Showers
LikelyTonight
Low: 52 °F
Severe
Thunderstorms
then Slight
Chance
T-stormsThursday
High: 74 °F
Patchy Fog
then SunnyThursday Night
Low: 55 °F
Mostly Clear
Friday
High: 76 °F
T-storms
Likely and
WindyFriday Night
Low: 35 °F
Breezy.
T-storms
Likely then
Showers
LikelySaturday
High: 47 °F
Slight Chance
Showers and
WindySaturday Night
Low: 29 °F
Partly Cloudy
and Windy
then Partly
CloudySunday
High: 54 °F
Sunny
Detailed Forecast
Today
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 69. West wind 5 to 8 mph becoming east in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Some of the storms could be severe and produce heavy rainfall. Cloudy, then gradually becoming partly cloudy, with a low around 52. Northeast wind around 7 mph becoming west northwest after midnight. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 74. Northwest wind 6 to 10 mph becoming southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 55. South wind 7 to 11 mph.
Friday
A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 76. Windy, with a south wind 13 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 35. Breezy. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 47. Windy.
Saturday Night
Partly cloudy, with a low around 29. Windy.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 67. Breezy.
Monday Night
Mostly clear, with a low around 47. Breezy.
Tuesday
Sunny, with a high near 71. Breezy.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grundy Center IA
42.36°N 92.76°W
42.36°N 92.76°W
6:46 am CDT Apr 15, 2026
7am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
