Today will be the last day in what has ended up being a beautiful, long stretch of unseasonably warm and dry weather. Much of the state has seen sunshine this week and temps in the 40s, 50s and even 60s. We'll chase those warmer readings away and see clouds thicken up later tonight.
Expect highs in the upper 40s in SE with rain showers likely. Southcentral will be warm, but not as warm as the last couple days. PWS will stay in the upper 40s and the Inlet region will top out in the 50s. Mild and sunny conditions are in store for Southwest with 40s and low 50s. Most of the Interior will remain mostly sunny and dry with highs in the 40s and 50. Clouds and isolated showers will remain along the southern Alcan.
A series of upper level disturbances will ripple through the state this weekend. By Monday, a more organized, long wave upper trough will dig over the state and enhance the threat for rain and snow over the southern Interior, Denali Park, and Southwest Alaska.
Accumulating snow is not likely at most lower elevations. However, snow may accumulate at elevations above 1500 feet.
A very slight chance of snow remains for Anchorage and the Valley, especially over the mountains, Monday into Tuesday. Moisture will be limited by the time the cold air arrives. Areas to our north and west are most likely to see snow mixing with rain and a brief change to all snow before the upper trough moves to the east and dryer air infiltrates the mainland.
Snow is not uncommon in Alaska in May. The last date of measurable snow in Anchorage is May 22.