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

Mobridge, Mobridge Municipal Airport (KMBG)

Lat: 45.55°NLon: 100.41°WElev: 1713ft.

Fair

67°F

19°C

Humidity 87%
Wind Speed NE 12 G 21 mph
Barometer 29.89 in (1011.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 16 Aug 3:52 am CDT
Extended Forecast for

Lebanon SD

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly before 5am. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 69. East wind around 6 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Partly sunny, with a high near 81. East northeast wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 81 °F

    Severe
    Thunderstorms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly after 3am. Mostly cloudy, with a low around 66. East wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 83. East northeast wind 11 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    T-storms
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. North northeast wind 8 to 11 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 82. East northeast wind 8 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 60. East wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 83. East wind 7 to 10 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. East wind 8 to 10 mph.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly before 5am. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 69. East wind around 6 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Partly sunny, with a high near 81. East northeast wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday Night
Showers and thunderstorms likely, mainly after 3am. Mostly cloudy, with a low around 66. East wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 83. East northeast wind 11 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 61. North northeast wind 8 to 11 mph.
Monday
Mostly sunny, with a high near 82. East northeast wind 8 to 10 mph.
Monday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 60. East wind 7 to 10 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 83. East wind 7 to 10 mph.
Tuesday Night
Mostly clear, with a low around 60. East wind 8 to 10 mph.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 89.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 40%.
Friday
A slight chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lebanon SD
 45.07°N 99.78°W (Elev. 1955 ft)
Last Update:
4:30 am CDT Aug 16, 2025
Forecast Valid:
4am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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