For This Afternoon: An area of high pressure located over southern New England will give Western and Central Mass plenty of sunshine throughout this afternoon. Temperatures will be between 70 and 75 Degrees. Winds will be Northwest at 5 to 10 mph. Tonight: That high pressure system will continue to control the weather with clear to partly cloudy skies expected. Low temperatures will be near 55 Degrees. Winds will be Southwest at 5 to 10 mph. Sunday: Summer will make an appearance on Sunday as a southwesterly wind flow sets up across the region. Skies will be partly sunny with high temperatures between 80 and 85 Degrees. Winds will be Southwest at 10 to 20 mph. Monday Through Wednesday: A cold front is expected to sink southward into the area during Monday and could bring a very large difference in temperatures from north to south across Western and Central Mass. Skies on Monday will be cloudy and there will be showers around, especially during the afternoon. High temperatures will range from 70 to 75 Degrees across the upper Pioneer Valley and near and north of Route 2 to 76 to 81 Degrees across areas near and south of the Mass Pike. That frontal boundary will push to the east for Tuesday and Wednesday with partly sunny skies expected both days. High temperatures will be near 75 Degrees. Thursday Through Friday: A rather potent cold front is expected to push eastward into New England between Thursday and Friday. The timing and strength of this front is going to be very important for a couple of reasons – the first reason is that a stronger front could bring a round of strong to severe thunderstorms when it moves through our area. The second reason is that the front will eventually interact with Tropical Storm Fiona. This means that if the frontal passage is slow and takes its time to move through, it could lead to Fiona being drawn northward towards our area late next week. On the other hand, a faster moving frontal passage would lead to Fiona to be picked up and pushed out into the open Atlantic well east of our area. We should begin getting a better idea of which scenario may win out in the coming couple of days. For now, both the frontal passage late next week and the track of Tropical Storm Fiona really needs to be watched closely for our weather here in Western and Central Mass. For now, I think that Thursday will be partly sunny, warm and humid with scattered thunderstorms during the afternoon and evening. The intensity of these thunderstorms will need to be watched closely as some of them may be strong to severe. High temperatures will be near 80 Degrees. Much cooler with much less humidity is expected on Friday under sunny skies. High temperatures will be between 65 and 70 Degrees.