High pressure is off the coast in the Pacific and an area of low pressure is moving through to our North today. The area of low pressure to our North is bringing clouds into Northern California today and some showers along the California and Oregon border. It is also helping to keep our high temperatures somewhat in check today. As the low pressure moves East and the high pressure moves through the Southwest, we'll see sunny skies and much warmer temperatures on Tuesday. Some areas may even set new high temperature records on Tuesday afternoon.
We had mostly sunny to partly cloudy skies, well above average temperatures and modest North winds over Northern California on Monday. Temperatures topped out in the mid 80's in the valley, in the mid to high 70's in the foothills, and in the 70's in most mountain areas. Skies will be clearing tonight, and we'll be sunny and much warmer on Tuesday. Valley areas are projected to start out in the high 50's to low 60's and end up in the low to mid 90's tomorrow afternoon. The current outlook has Redding setting a new high temperature record, and Red Bluff in a tie with it's previous record. Both cities are projected to hit 94 degrees on Tuesday afternoon. Redding's previous record for April 28th is 93 degrees and that was set in 1981. Red Bluff had a high of 94 degrees on April 28th of 2013. Many other cities are projected to be close to breaking records, and we'll get into that in our forecast tomorrow. Foothill areas can expect to start out in the 50's to 60's on Tuesday morning and ending up in the mid to high 80's on Tuesday afternoon. Mountain areas will mostly start out in the 40's on Tuesday morning and will end up in the low to mid 80's for high temperatures.
The ridge of high pressure will be moving to our East for the remainder of the week and we'll have areas of low pressure passing through to our North. That will result in a decent cooling trend ahead and clouds brushing through our region mid week into the weekend. Valley temperatures will dip back into the mid to high 80's on Wednesday and will continue to slide down into the mid ot high 70's for your weekend. Low temperatures in the valley will be in the 50's to 60's through this weekend. Foothill areas can expect highs in the 70's for the remainder of hte week after Tuesday and mountain areas will end up in the 60's to 70's late this week. Models are currently hinting at the chance of showers brushing across Northern California late Saturday into Sunday of this weekend. The source of the showers will be located well to our North and we'll get a much better idea of how likely showers will be over the next few days.