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Ontario School Weather Map
UTC Time: 8/15/2026, 06:15
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Ontario School, South Dakota Hour by Hour Forcast

Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Ontario School, SD Regional Weather

Expires:202608150700;;214478
ASUS43 KFSD 150610
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
100 AM CDT SAT AUG 15 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.



SDZ017-020-022-023-036>040-048>070-150700-
SOUTHEAST SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SIOUX FALLS    CLOUDY    71  69  93 SE9       30.02F TC  22           
HURON          PTCLDY    69  69 100 CALM      30.00R TC  21           
CHAMBERLAIN    PTCLDY   N/A N/A N/A SE8       30.03S                  
MADISON        CLOUDY    70  70 100 SE9       30.03R TC  21           
MITCHELL       CLOUDY    72  71  97 S5        30.00R TC  22           
YANKTON        CLOUDY    74  74 100 SE7       30.01S TC  23           
$$
 
ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY

  

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed  PRES - Barometric Pressure  VSB - Visibility
WCI - Wind Chill Index  E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

South Dakota Weather Map South Dakota Wind Speeds Map South Dakota Humidity Map South Dakota Barometric Pressure Map

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Forecast Discussion (ABR)

Issued: 1244 AM CDT Sat Aug 15 2026

Key Messages

  • Additional spotty chances of rain and weak thunderstorms (15-30%) will be possible tonight through Saturday afternoon across central and northeastern SD.
  • Average to slightly below average temperatures expected through the weekend.


Discussion

... Issued at 143 PM CDT Fri Aug 14 2026

As of 18z, there are scattered showers over portions of north central SD. These showers are connected to the Lee of the Rockies surface trough over western SD that has started to move east. This trough will c...