Sweeney, SD Weather Forecast and Current Conditions

WEATHER ALERTS - Winter Weather Advisory

Current Conditions

Windy with Snow Likely 22°F
Feels Like 6°F  
Humidity 88% Dew Point 19°F Wind NNW 23 MPH Gusts 33 Barometer 30.22 in.
Visibility 4 mi.
Report from a NOAA weather station 27.5 mi. SSE of central Sweeney
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Point Forecast at a Glance

FriDec 12
Fri Dec 12: Snow, High 11F, Low 5F
40%
11
5
SatDec 13
Sat Dec 13: Snow, High 9F, Low -6F
40%
9
-6
SunDec 14
Sun Dec 14: Blowing Snow, High 34F, Low 23F
50%
34
23
MonDec 15
Mon Dec 15: Sunny, High 43F, Low 25F
43
25
TueDec 16
Tue Dec 16: Mostly Sunny, High 49F, Low 30F
49
30
WedDec 17
Wed Dec 17: Partly Sunny, High 53F, Low 22F
53
22
ThuDec 18
Thu Dec 18: Mostly Sunny, High 38F
38
 

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7-Day Temperature Trend

Week Ahead Summary

High temperatures climb from 9°F to a high of 53°F by week's end. Some snow possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 3°F above the historical average for December. Normal highs for this period are around 35°F with lows around 14°F.

This Date in Weather History

1969 - The worst tornado of record for western Washington State tracked south of Seattle, traveling five miles, from Des Moines to Kent. The tornado, 50 to 200 yards in width, began as a waterspout over Puget Sound. One person was injured and the tornado caused half a million dollars damage.

More on this and other weather history

Sweeney, SD 7 Day Weather Forecast Details

Friday Dec 12

Snow

Day: A chance of snow, mainly after noon. Cloudy, with a temperature falling to around 11 by 4pm. Blustery, with a north northwest wind 20 to 25 mph decreasing to 14 to 19 mph in the afternoon. Chance of precipitation is 40%.

Snow

Night: Snow, mainly after midnight. Low around 5. North wind 9 to 14 mph becoming east after midnight. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday Dec 13

Snow

Day: A chance of snow before noon. Mostly cloudy and cold, with a high near 9. East northeast wind 9 to 14 mph becoming north northwest in the afternoon. Chance of precipitation is 40%.

Partly Cloudy

Night: Partly cloudy, with a low around -6. Wind chill values as low as -20. North northwest wind 6 to 13 mph becoming south southeast after midnight.

Sunday Dec 14

Blowing Snow

Day: Patchy blowing snow after 10am. Sunny, with a high near 34. Breezy, with a southeast wind 14 to 22 mph, with gusts as high as 32 mph.

Mostly Clear

Night: Mostly clear, with a low around 23. South wind 11 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.

Monday Dec 15

Sunny

Day: Sunny, with a high near 43. West wind 8 to 11 mph becoming south southwest in the afternoon.

Partly Cloudy

Night: Partly cloudy, with a low around 25. South wind 8 to 11 mph becoming west southwest after midnight.

Tuesday Dec 16

Mostly Sunny

Day: Mostly sunny, with a high near 49. West wind 11 to 13 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 30.

Wednesday Dec 17

Partly Sunny

Day: Partly sunny, with a high near 53. Breezy.

Partly Cloudy

Night: Partly cloudy, with a low around 22. Blustery.

Thursday Dec 18

Mostly Sunny

Day: Mostly sunny, with a high near 38.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.