National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Light Rain

62°F

17°C

Humidity 90%
Wind Speed E 14 mph
Barometer 29.84 in (1010.4 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 21 Jun 2:53 pm CDT
Extended Forecast for

4 Miles WSW Union IA

  • This Afternoon

    This Afternoon: Showers likely, mainly before 4pm. Mostly cloudy, with a steady temperature around 62. East wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 53. East northeast wind 5 to 8 mph becoming light and variable.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Northeast wind around 6 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Light and variable wind.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 60. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers likely, mainly before 4pm. Mostly cloudy, with a steady temperature around 62. East wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A 10 percent chance of showers before 7pm. Mostly cloudy, with a low around 53. East northeast wind 5 to 8 mph becoming light and variable.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 55. Light and variable wind.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 60. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Union IA
 42.21°N 93.15°W
Last Update:
2:43 pm CDT Jun 21, 2026
Forecast Valid:
3pm CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation