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.

Mostly Cloudy

61°F

16°C

Humidity 90%
Wind Speed W 7 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 26 Aug 11:56 pm CDT
Extended Forecast for

Arco MN

  • Overnight

    Overnight: Mostly clear, with a low around 55. West northwest wind around 5 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. West northwest wind 5 to 10 mph becoming north in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 64. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 64 °F

    Chance
    T-storms then
    Showers and
    Breezy

  • Saturday

    Saturday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. Breezy, with a south wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 10%.

    High: 85 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 55. West northwest wind around 5 mph.
Thursday
Sunny, with a high near 79. West northwest wind 5 to 10 mph becoming north in the afternoon.
Thursday Night
Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 82. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 64. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Saturday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 85. Breezy, with a south wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 10%.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arco MN
 44.38°N 96.17°W (Elev. 1663 ft)
Last Update:
11:43 pm CDT Aug 26, 2026
Forecast Valid:
12am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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