Current conditions at
Marshalltown, Marshalltown Municipal Airport (KMIW)
Lat: 42.11°NLon: 92.92°WElev: 971ft.
Fair
3°F
-16°C
| Humidity | 69% |
| Wind Speed | NW 12 mph |
| Barometer | 30.62 in (1039.1 mb) |
| Dewpoint | -5°F (-21°C) |
| Visibility | 10.00 mi |
| Wind Chill | -14°F (-26°C) |
| Last update | 31 Jan 12:53 am CST |
Extended Forecast for
Grundy Center IA
Overnight

Low: -4 °F
Mostly Clear
Saturday

High: 18 °F
Sunny
Saturday Night
Low: 9 °F
Partly Cloudy
then Slight
Chance SnowSunday
High: 28 °F
Snow Likely
then Slight
Chance SnowSunday Night

Low: 14 °F
Mostly Cloudy
Monday

High: 26 °F
Mostly Sunny
Monday Night
Low: 15 °F
Mostly Cloudy
then Slight
Chance SnowTuesday

High: 27 °F
Chance Snow
Tuesday Night

Low: 14 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around -4. Wind chill values as low as -15. North northwest wind around 9 mph.
Saturday
Sunny, with a high near 18. Wind chill values as low as -15. North northwest wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
A 20 percent chance of snow after midnight. Increasing clouds, with a low around 9. Wind chill values as low as -5. Light south wind increasing to 6 to 11 mph in the evening.
Sunday
Snow likely, mainly before noon. Mostly cloudy, with a high near 28. Wind chill values as low as zero. South wind 8 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly cloudy, with a low around 14. Southwest wind 6 to 8 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 26.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 15.
Tuesday
A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 26.
Wednesday Night
Mostly cloudy, with a low around 14.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 31. Blustery.
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
1:13 am CST Jan 31, 2026
1am CST Jan 31, 2026-6pm CST Feb 6, 2026


