South Carolina voters should prepare for rainy primary election day

• South Carolina voters face potential showers and thunderstorms on June 9 in the Upstate.
• The National Weather Service forecasts a 70% chance of precipitation, with storms increasing in the afternoon.
• Some areas in the Upstate could experience heavy rainfall and isolated flooding.

Primary election day has arrived in Upstate South Carolina. And voters heading to the polls today, June 9, may want to keep an eye on the weather before stepping out to cast their ballot.

According to the National Weather Service in Greenville–Spartanburg, showers and thunderstorms are expected through the afternoon and evening of June 9. With heavy rainfall possible across parts of the Upstate.

Forecasters warn that the chances of storms could increase early in the afternoon, then taper off later tonight. Some areas could also see isolated flooding as slow‑moving storms develop.

As voters head to the polls, the weather may end up playing just as much of a role in the day as the races themselves.

Soggy skies ahead for South Carolina primary

As reported by the National Weather Service, a sharp trough sliding in today is about to stir things up across South Carolina.

The atmosphere is already setting the stage for a soggy, storm‑filled afternoon on June 9. It’s a day where showers and thunderstorms become increasingly common as a weak backdoor front hangs around just long enough to keep things unsettled.

Severe weather isn’t expected to be a major player, but it’s not completely off the table either.

Greenville, Upstate SC weather outlook for June 9 primary

• June 9: Showers likely before 11 a.m., then showers likely and possibly a thunderstorm between 11 a.m. and 2 p.m., then a chance of showers and thunderstorms after 2 p.m. Mostly cloudy, with a high near 81. Calm winds become south-southwest around 6 mph in the afternoon. Precipitation chance is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. 
• Tonight: A 30% chance of showers before 8 p.m. Mostly cloudy, with a low around 68. Southwest wind around 5 mph, becomes calmer in the evening. New precipitation amounts of less than a tenth of an inch are possible.

Travis Jacque Rose is the trending news reporter for the Greenville News, part of the USA TODAY Network. Reach him at trose@gannett.com.