Weather
Yankton, South Dakota
Current Conditions
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Almanac
Average High: 83°
Average Low: 58°
Record high/year: 99° (1955)
Record low/year: 34° (1950)
Sunrise: 6:41 AM
Sunset: 8:23 PM
Detailed History
Sun and Moon
Sunrise: 06:41 AM (CDT)
Moon Rise: 09:54 PM (CDT)
Sunset: 08:23 PM (CDT)
Moon Set: 10:55 AM (CDT)
Moon Phase
Next 12 Hours
Forecast data from the National Digital Forecast Database
5-Day Forecast
Forecast for Yankton
Today
Mostly sunny and breezy. Highs in the mid 80s. South winds 15 to 25 mph.
Tonight
Partly cloudy. Lows in the mid 60s. South winds 10 to 15 mph.
Thursday
Partly sunny. Highs in the lower 80s. South winds 10 to 20 mph.
Thursday Night
Partly cloudy. Lows in the mid 60s. South winds 10 to 20 mph.
Friday
Partly cloudy. A 20 percent chance of thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph becoming west in the afternoon.
Friday Night
Partly cloudy. Lows around 60.
Saturday
Sunny. Highs in the lower 80s.
Saturday Night through Monday
Partly cloudy. Lows around 60. Highs in the upper 80s.
Monday Night and Tuesday
Partly cloudy. Lows in the mid 60s. Highs in the mid 80s.
Public Information Statement
Statement as of 11:00 am CDT on August 20, 2008
... Sioux Falls climate data...
high temperature so far today... . 76
low temperature so far today... .. 65
precipitation since midnight... .. 0
... Huron climate data...
high temperature so far today... . 77
low temperature so far today... .. 66
precipitation since midnight... .. 0
... Sioux City climate data...
high temperature so far today... . 76
low temperature so far today... .. 58
precipitation since midnight... .. 0
Missouri River stage... ... ... ... . 13.51 feet
Personal Weather Stations
Personal Weather Stations [Add your weather station!]
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Location: IEM Yankton KELO-TV, Yankton, SD Updated: 1:46 PM CDT |
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| Temperature: 80 °F | Dew Point: 62 °F | Humidity: 54% | Wind: NE at 3 mph | Pressure: 29.91 in | Hourly Precipitation: 0.00 in | Heat Index: 81 °F | Historical Graphs |
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Location: NEDOR Yankton Hill on HWY 81 @ MP 212.10, Saint Helena, Dry Updated: 1:41 PM CDT |
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| Temperature: 80 °F | Dew Point: 61 °F | Humidity: 54% | Wind: SSE at 18 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: 81 °F | Historical Graphs |
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Location: CROFTON, Crofton, NE Updated: 2:16 PM CDT |
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| Temperature: 78.8 °F | Dew Point: 61 °F | Humidity: 55% | Wind: SSE at 15.0 mph | Pressure: 29.99 in | Hourly Precipitation: 0.00 in | Heat Index: 80 °F | Historical Graphs |
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Location: IEM Vermillion KELO-TV, Vermillion, SD Updated: 1:50 PM CDT |
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| Temperature: 81 °F | Dew Point: 59 °F | Humidity: 47% | Wind: North at 9 mph | Pressure: 30.74 in | Hourly Precipitation: 0.00 in | Heat Index: 81 °F | Historical Graphs |
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Location: NonFedAWOS VERMILLION SD US SUPERAWOS, Vermillion, SD Updated: 1:55 PM CDT |
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| Temperature: 81 °F | Dew Point: 59 °F | Humidity: 48% | Wind: SE at 14 mph | Pressure: 29.99 in | Hourly Precipitation: 0.00 in | Heat Index: 81 °F | Historical Graphs |
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MSN Maps of: |
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| Temperature | Dew Point | Humidity | Wind | Pressure | Hourly Precipitation | - | |
NWS Forecaster Discussion
622 fxus63 kfsd 201526 afdfsd Area forecast discussion for southeast South Dakota/southwest Minnesota/northwest Iowa National Weather Service Sioux Falls South Dakota 1025 am CDT Wednesday Aug 20 2008 Discussion.... minimal cloud cover this afternoon with some cumulus development...but once again cumulus will disappear this evening with the lost of daytime heating. Srly winds will increase to 20 to 30 miles per hour this afternoon and temperatures will rise into the middle to upper 80s. Forecast right on track for today...so only minor tweaks to the grids. && Aviation... strong srly winds this afternoon and again tomorrow. VFR today and most of tonight...but MVFR possible late tonight near sux as low level moisture stream nwrd and stratus deck around 3000 feet form. && Previous discussion... a few cloud patchs 5-10k feet developing and moving northward over area early this morning but no indicatn of a gnrl moisture increases that level till latr tonight when northward driftg shortwave approaches. So...sill looks like mosunny today. Gradnt continues to increases and a breezy to windy day expectd. With a pretty straight gradnt and fallng pressure think winds even far west/northwest will stay below advisory levels despite decent mixg down of strong low level wind field. Above mention shortwave will appchg southeastern/eastern forecast area late tonight and brush over it Thursday. Pretty decent middle cloud shield expctd and some low clouds as well...so a mostly cloudy day expectd over northwestern Iowa and possibly nearby areas. After hi temperatures today close to Tuesday...coolng in store for southeastern forecast area for Thursday. Will keep slight chance/chance shower mention southeastern forecast area for Thursday. Despite wimpy lift and support...moisture seems ample to keep as it wont take much to produce a few so so showers. NAM has come in line with other models this morning on decent movmnt of cold front across forecast area Friday. This wont leave much room for thunderstorm threat over most of forecast area. Threat should be confined to central and eastern forecast area and pass pretty quickly central and NE...but may linger well into the night far southeastern forecast area in northwestern Iowa east of sux. Friday temperatures will see some evening out with some coolng behind fnt west but warmr temperatures than Thursday east after Thursday cool pocket gets chased out. No change in dry Sat through Tuesday forecast...mild over weekend with a little warmng Monday. No excitement as of yet about cold front GFS brings into area Tuesday...or about diffrnt looking upper low European model (ecmwf) has at southwestern corner of County Warning Area. In either event pattrn not favorable for bringing widespread moisture up into northern plains despite these features. && Fsd watches/warnings/advisories... South Dakota...none. Minnesota...none. Iowa...none. NE...none. && $$ Update...liebl Williams