Walpole should go from sunglasses to windshield wipers later today.
Heavy thunderstorms expected to bring .90 inches of rain should start around 12 p.m. before the sun returns around 1 p.m., AccuWeather reports on its website. More storms are expected around 4 p.m.
The summer of 2012's second heat wave might reach its fifth day before then.
Walpole should hit 91 degrees around 1 p.m., AccuWeather says.
If so, the season's longest heat wave would continue. An official heat wave is three or more days of 90 degrees or higher.
Walpole topped out on Tuesday at 96 degrees, tying its mark from June 20, June 21 and June 22.