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We have one more mild day to enjoy before some BIG TIME changes take place as we head into the weekend. Today will be partly cloudy with clouds increasing and even a few scattered thundershowers developing this afternoon. High temperatures will range from the low 80s in Sioux Falls and across the tri-state area to the low 70s across central and northern South Dakota.
Clouds will increase this afternoon with showers and thunderstorms possible this evening and overnight tonight. Scattered showers and thunderstorms will continue, on and off, through the day tomorrow and into tomorrow night. I don’t expect a constant rain tonight and tomorrow, however there will be numerous scattered showers and thunderstorms. One-half inch or more of rain is possible in some places through tomorrow.
A low-pressure system will move out of the Rockies and onto the plains on Friday, bringing widespread rain for everyone and the possibility of severe weather across extreme southeast South Dakota, southern Minnesota and most of Iowa. On the backside of the low, rain and colder temperatures are likely. In fact, a couple of our forecast models hint at the possibility of snow mixing in with the rain along and west of the James River on Saturday. Stay tuned for updates on that. Whatever happens, I do not expect snow to be a big deal. Although, I know that the first snowflakes of the year, even if it’s just one or two flakes, it’s kind of a big deal.
Overall, between one and two inches of rain is possible in some places over the next several days. As of right now, it looks as though the system will move out late Saturday with sunshine and warmer temperatures (in the 60s) returning by early next week. Stay tuned for the very latest updates.