This week’s warm temperatures will arch upward again today with a high temperature in Sacramento this afternoon in the mid-90s, the National Weather Service forecasts. That’s about 15 degrees higher than usual for this time in May.
But that summery weather is about to give way by week’s end.
Thursday’s high will be only about 80 degrees, and by Friday, Sacramento residents may be getting out the umbrellas. Weather service forecasters say they see a chance of rain - and possible thunderstorms - in the valley from Friday through the middle of next week.
Thunderstorms are most likely on Friday afternoon - about a 30 percent chance - with some possibility over the weekend.
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“It’s an upper level weather system bring cold air from Canada, sitting right over us,” said Jason Clapp, a meteorologist with the weather service. “It kind of hangs out through early next week. It’ll keep things relatively cool.
“Even in mid-week next week, we have another system coming in behind that.”
That could mean a bit of snow over Tahoe passes. “I don’t know if much is gong to stick, it’s been so warm,” Clapp said.
The week-ahead forecast:
Today - Sunny, with a high near 95. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight - Mostly clear, with a low around 58. West wind 6 to 10 mph becoming south after midnight.
Thursday - Sunny, with a high near 81. South wind 6 to 11 mph becoming west southwest in the morning.
Thursday Night - Partly cloudy, with a low around 53. South wind 11 to 15 mph, with gusts as high as 21 mph.
Friday - A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 71. South southwest wind around 7 mph. Chance of precipitation is 30%.
Friday Night - A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Saturday - A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Saturday Night - A chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 52.
Sunday - Mostly sunny, with a high near 73.
Sunday Night - Partly cloudy, with a low around 52.
Monday - A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Monday Night - A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Tuesday - Mostly sunny, with a high near 75.