Hazardous Weather Conditions
Current conditions at
Marshalltown, Marshalltown Municipal Airport (KMIW)
Lat: 42.11°NLon: 92.92°WElev: 971ft.
Fair
58°F
14°C
| Humidity | 100% |
| Wind Speed | S 8 mph |
| Barometer | 29.77 in (1007.9 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 9.00 mi |
| Last update | 13 Apr 3:53 am CDT |
Extended Forecast for
Grundy Center IA
Today
High: 78 °F
Patchy Fog
then Slight
Chance
T-storms and
WindyTonight

Low: 60 °F
Chance
T-storms and
BreezyTuesday
High: 81 °F
Mostly Sunny
then Chance
T-stormsTuesday Night

Low: 56 °F
Showers
LikelyWednesday
High: 73 °F
Chance
T-storms then
ShowersWednesday Night

Low: 52 °F
Chance
T-stormsThursday

High: 75 °F
Slight Chance
ShowersThursday Night

Low: 57 °F
Mostly Clear
Friday
High: 79 °F
Mostly Sunny
and Breezy
then Showers
Likely and
Windy
Detailed Forecast
Today
A slight chance of showers and thunderstorms between 1pm and 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 78. Windy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 60. Breezy, with a southwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. South southwest wind 8 to 11 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56. Southwest wind 8 to 10 mph becoming northeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 73. East wind 8 to 14 mph becoming south in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 52. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers before 1pm. Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 57.
Friday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 79. Windy. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 52. Windy.
Saturday Night
Mostly cloudy, with a low around 32. Breezy.
Sunday
Sunny, with a high near 56.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grundy Center IA
42.36°N 92.76°W
42.36°N 92.76°W
4:06 am CDT Apr 13, 2026
4am CDT Apr 13, 2026-6pm CDT Apr 19, 2026



