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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Buffalo (K2WX)

Lat: 45.6°NLon: 103.55°WElev: 3002ft.

67°F

19°C

Humidity 93%
Wind Speed SE 6 mph
Barometer 29.94 in (1011.8 mb)
Dewpoint 65°F (18°C)
Visibility NA
Last update 16 Aug 8:56 am MDT
Extended Forecast for

17 Miles W Ludlow SD

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. Partly sunny, with a high near 87. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southeast wind 10 to 15 mph becoming east after midnight. Winds could gust as high as 25 mph.

    Low: 62 °F

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 87. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. East wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 86. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could be severe. Partly sunny, with a high near 87. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Southeast wind 10 to 15 mph becoming east after midnight. Winds could gust as high as 25 mph.
Sunday
A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 87. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. East wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 86. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 90. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 62. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 86.
Thursday Night
A chance of showers. Partly cloudy, with a low around 57.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Ludlow SD
 45.83°N 103.73°W (Elev. 3140 ft)
Last Update:
8:30 am MDT Aug 16, 2025
Forecast Valid:
9am MDT Aug 16, 2025-6pm MDT Aug 22, 2025
 
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