| National Weather Service Forecast for:
Marshalltown IA Issued by: National Weather Service Des Moines, IA |
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| Updated: 5:47 pm CDT Jul 16, 2026 | ||||||||||||||||||
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| Tonight |
Partly cloudy, with a low around 71. Light south southeast wind. |
| Friday |
A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%. |
| Friday Night |
Mostly clear, with a low around 73. South southwest wind 3 to 6 mph. |
| Saturday |
Sunny, with a high near 92. Heat index values as high as 100. West wind 5 to 8 mph becoming north in the afternoon. |
| Saturday Night |
Mostly clear, with a low around 66. North wind 5 to 7 mph becoming calm in the evening. |
| Sunday |
Sunny, with a high near 90. |
| Sunday Night |
Partly cloudy, with a low around 70. |
| Monday |
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. |
| Monday Night |
Partly cloudy, with a low around 70. |
| Tuesday |
Sunny, with a high near 87. |
| Tuesday Night |
Partly cloudy, with a low around 61. |
| Wednesday |
Sunny, with a high near 81. |
| Wednesday Night |
Partly cloudy, with a low around 61. |
| Thursday |
Mostly sunny, with a high near 81. |
Forecast from NOAA-NWS for Marshalltown IA.
