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

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Fair

25°F

-4°C

Humidity 88%
Wind Speed SE 3 mph
Barometer 30.37 in (1029.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 15 Nov 3:53 am CST
Extended Forecast for

Union IASimilar City Names

  • Today

    Today: Mostly sunny, with a high near 51. Calm wind becoming south around 5 mph.

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Light south wind.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Light south wind becoming south southwest 6 to 11 mph in the morning.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. South wind around 7 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Breezy, with a south wind 7 to 17 mph, with gusts as high as 24 mph.

    High: 58 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. Windy.

    High: 59 °F

    Mostly Sunny
    and Windy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 51. Calm wind becoming south around 5 mph.
Tonight
Mostly clear, with a low around 27. Light south wind.
Monday
Sunny, with a high near 55. Light south wind becoming south southwest 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 35. South wind around 7 mph.
Tuesday
Mostly sunny, with a high near 58. Breezy, with a south wind 7 to 17 mph, with gusts as high as 24 mph.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 59. Windy.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 45.
Thursday
Sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 39.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 62.
Friday Night
Showers. Low around 50. Chance of precipitation is 80%.
Saturday
Showers. High near 61. Breezy. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union IASimilar City Names
 42.23°N 93.06°W
Last Update:
1:01 am CST Nov 15, 2026
Forecast Valid:
4am CST Nov 15, 2026-6pm CST Nov 21, 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