Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Canby Airfield (KCNB)

Lat: 44.73°NLon: 96.27°WElev: 1194ft.

Overcast

70°F

21°C

Humidity 97%
Wind Speed E 3 mph
Barometer 29.88 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 4:15 am CDT
Extended Forecast for

6 Miles W Brandt SD

Dense Fog Advisory until August 18, 09:00am
Flood Warning until August 18, 04:15pm
Click here for hazard details and duration
Dense Fog Advisory
Flood Warning
  •  
    Dense Fog Advisory until August 18, 09:00am
    Flood Warning until August 18, 04:15pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 65 °F

    Chance
    Showers and
    Areas Dense
    Fog

  • Monday

    Monday: Patchy dense fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 5 to 8 mph becoming north northwest in the afternoon.

    High: 82 °F

    Patchy Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 65. Northeast wind 3 to 6 mph.

    Low: 65 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 82. Northeast wind 5 to 7 mph.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Northeast wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. South southeast wind 3 to 8 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South wind 8 to 10 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. South wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 84 °F

    Sunny

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Areas of dense fog. Otherwise, mostly cloudy, with a low around 65. South southwest wind around 5 mph. Chance of precipitation is 40%.
Monday
Patchy dense fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 82. Southwest wind 5 to 8 mph becoming north northwest in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 65. Northeast wind 3 to 6 mph.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 82. Northeast wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 64. Northeast wind 5 to 7 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 81. South southeast wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 62. South wind 8 to 10 mph.
Thursday
Sunny, with a high near 84. South wind 11 to 14 mph, with gusts as high as 22 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. South wind around 10 mph becoming west after midnight. Chance of precipitation is 50%.
Friday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Brandt SD
 44.68°N 96.75°W (Elev. 1850 ft)
4:02 am CDT Aug 18, 2025
4am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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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