SAN DIEGO — Temperatures will be up to 20 degrees above normal over the weekend, hitting the 90s in the inland valleys, forecasters say.
An upper level ridge of high pressure and a weak offshore flow will combine to bring unseasonably warm temperatures to the region.
Highs today are expected to range from 66 to 71 degrees in coastal areas, 73 to 78 in the valleys, 55 to 70 in the mountains, 71 to 74 in the high deserts and 85 to 87 in the low deserts.
On Saturday, the forecast calls for highs of 72 to 83 degrees in coastal areas, 80 to 88 in the valleys, 59 to 74 in the mountains, 75 to 78 in the high deserts and 87 to 89 in the low deserts.
By Sunday, it’ll be 78 to 86 degrees in coastal areas, 85 to 90 in the valleys, 61 to 79 in the mountains, 78 to 82 in the high deserts and 86 to 88 in the low deserts, the NWS said.