Sinai, SD Weather Forecast and Current Conditions
Current Conditions From Nearby Station
Feels Like 11°F
at
Point Forecast at a Glance
7-Day Temperature Trend
Week Ahead Summary
High temperatures climb from 3°F to a high of 39°F by week's end. Unsettled weather expected with snow likely on at least 4 days.
Climate Context
This week's forecast shows temperatures running 3°F below the historical average for December. Normal highs for this period are around 28°F with lows around 10°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.
Sinai, SD 7 Day Weather Forecast Details
Friday Dec 12
Day: A chance of flurries between 9am and noon. Patchy blowing snow between 10am and 4pm. Mostly cloudy, with a temperature falling to around 3 by 5pm. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Night: Snow likely, mainly after 5am. The snow could be heavy at times. Mostly cloudy, with a low around -3. Wind chill values as low as -18. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday Dec 13
Day: Snow likely before noon. Cloudy through mid morning, then gradual clearing, with a high near 3. Wind chill values as low as -20. North wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Night: Mostly clear, with a low around -17. Wind chill values as low as -27. Northwest wind 5 to 10 mph becoming west southwest after midnight.
Sunday Dec 14
Day: Patchy blowing snow after 3pm. Mostly sunny, with a high near 16. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Night: Patchy blowing snow before midnight. Partly cloudy, with a low around 4. Breezy, with a south wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.
Monday Dec 15
Day: Mostly sunny, with a high near 31.
Night: Partly cloudy, with a low around 17.
Tuesday Dec 16
Day: Partly sunny, with a high near 39.
Night: Partly cloudy, with a low around 24.
Wednesday Dec 17
Day: Partly sunny, with a high near 38.
Night: A slight chance of rain and snow. Mostly cloudy, with a low around 16. Chance of precipitation is 20%.
Thursday Dec 18
Day: Mostly sunny, with a high near 26.
About Sinai, SD
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