Hazardous Weather Conditions
Current conditions at
Marshalltown, Marshalltown Municipal Airport (KMIW)
Lat: 42.11°NLon: 92.92°WElev: 971ft.
Mostly Cloudy
65°F
18°C
| Humidity | 63% |
| Wind Speed | SE 17 mph |
| Barometer | 29.93 in (1013.4 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 22 May 4:53 pm CDT |
Extended Forecast for
Grundy Center IA
Tonight
Low: 52 °F
Mostly Cloudy
then Slight
Chance
ShowersSaturday
High: 75 °F
Slight Chance
Showers then
Mostly SunnySaturday Night

Low: 50 °F
Decreasing
CloudsSunday

High: 80 °F
Sunny
Sunday Night

Low: 55 °F
Mostly Clear
Memorial Day

High: 84 °F
Sunny
Monday Night

Low: 59 °F
Mostly Clear
Tuesday

High: 85 °F
Sunny
Tuesday Night

Low: 60 °F
Mostly Clear
Detailed Forecast
Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 52. Southeast wind 5 to 14 mph, with gusts as high as 20 mph.
Saturday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 75. Light and variable wind becoming west northwest 5 to 9 mph in the morning.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 50. West northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 55. South wind around 6 mph.
Memorial Day
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 81.
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
2:11 pm CDT May 22, 2026
5pm CDT May 22, 2026-6pm CDT May 29, 2026



