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

STURGIS (K49B)

Lat: 44.42°NLon: 103.38°WElev: 3243ft.

Fair

86°F

30°C

Humidity 46%
Wind Speed SE 9 mph
Barometer 29.94 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 15 Aug 4:55 pm MDT
Extended Forecast for

Nemo SD

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 79. Southeast wind around 5 mph.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after noon. Some of the storms could be severe. Partly sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.

    High: 80 °F

    Slight Chance
    T-storms then
    Severe
    Thunderstorms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. East wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Calm wind becoming east around 5 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55. East wind around 5 mph becoming calm.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Sunny, with a high near 83. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.

    High: 83 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. East wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 86.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 79. Southeast wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after noon. Some of the storms could be severe. Partly sunny, with a high near 80. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. East wind around 5 mph becoming calm in the evening.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Calm wind becoming east around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55. East wind around 5 mph becoming calm.
Monday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Sunny, with a high near 83. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 55. East wind around 5 mph becoming calm.
Tuesday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nemo SD
 44.19°N 103.52°W (Elev. 4744 ft)
Last Update:
4:50 pm MDT Aug 15, 2025
Forecast Valid:
5pm MDT Aug 15, 2025-6pm MDT 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