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

Marshall, Southwest Minnesota Regional Airport - Marshall/Ryan Field (KMML)

Lat: 44.45°NLon: 95.82°WElev: 1181ft.

Fair

49°F

9°C

Humidity 97%
Wind Speed E 6 mph
Barometer 30.31 in (1027.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 22 Sep 6:56 am CDT
Extended Forecast for

Arco MN

  • Today

    Today: Patchy drizzle and fog before 10am. Partly sunny, with a high near 59. East southeast wind 5 to 10 mph.

    High: 59 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. Southeast wind around 10 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 62. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 52. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 65. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. South southeast wind 5 to 10 mph.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 67. Breezy.

    High: 67 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Patchy drizzle and fog before 10am. Partly sunny, with a high near 59. East southeast wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 46. Southeast wind around 10 mph.
Wednesday
Partly sunny, with a high near 62. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 52. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 65. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 54. South southeast wind 5 to 10 mph.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 67. Breezy.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 56.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arco MN
 44.4°N 96.17°W (Elev. 1657 ft)
Last Update:
5:18 am CDT Sep 22, 2026
Forecast Valid:
7am CDT Sep 22, 2026-6pm CDT Sep 28, 2026
 
Forecast Discussion
 
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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