Thursday’s temperatures were very near average for most locations. Medford saw its average high for this time of year, as did Klamath Falls. Expect slightly cooler temperatures on Friday as a weak cold front passes late Thursday night and early Friday morning. It will also bring with it low clouds to portions of the coast and inland areas north of the Umpqua Divide.
By Saturday, what is known as a thermal trough sets up in northern California. This occurs when the air near the earth’s surface warms, causing the air to rise higher up in the atmosphere. This removes mass (the air) from the surface, lowering the pressure and creating the thermal trough. With the trough in place, the Chetco effect in Brookings will warm temperatures there into the middle 70’s on Saturday.
Next week we will get another dip in temperatures on Monday, but by the middle of the week, our pleasant weekend will be only a memory. Highs Tuesday and Wednesday are projected to be in the middle and upper 90’s in the Rogue Valley and northern California.
Chief Meteorologist Kate McKenna