Warm temperatures and mostly cloudy skies for Friday
A weak high pressure to the northeast of Maine will keep any precipitation away for the day, but mostly cloudy skies statewide are expected. Portland, Mid Coast, and Down East areas will be in the mid 60s for their high temperature, and elsewhere in the 70s. Dew points in the 60s may make the outside feel a little muggy. Winds will be light and from the northeast. Overall, a warm and cloudy summer day.
Isolated showers up north and warm temperatures for Fourth of July
Daytime temperatures increase slightly from Friday, with northern areas in the upper 70s with pockets of temperatures hitting 80. Elsewhere will be in the 70s. Dew point in the 60s will give a muggy feel outside as well, much like Friday. Winds kick up slightly from the new, but weak, low pressure approaching the state; northerly winds ranging from 7 to 12 mph.
The GIF above runs from 11 AM Saturday to 7 PM Saturday. The approaching weak low pressure provides the atmosphere in Maine a lifting mechanism to develop isolated showers for the northern regions of Maine for the Fourth of July afternoon. There may be some thunderstorms embedded in the showers, so at the first sign of thunder, stop any outdoor activity, especially in water, and retreat indoors.
Sunday rain outlook
The GIF above runs from 7 AM Sunday to 7 AM Monday and shows 3-hour precipitation. The weak low pressure system from Saturday gets stronger and develops stronger fronts, in which the cold front pushes into Maine during Sunday. This potential for rain tells us that it will likely be a line of showers or storms, not necessarily widespread. Timing and location of this potential will be posted once more information from weather models is available.
Fourth of July is on a Saturday this year, and many people will be enjoying the warm temperatures outdoors. The weather across the country won't be the same, though, and some areas may have thunderstorms in the forecast. So with any indication of thunder, stop all outdoor activity (especially in water) and retreat indoors. Most lightning incidents are from those who say "five more minutes" while continuing their activity when a storm approaches.
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