Weather Synopsis – February 23, 2026

Source: https://atmos.ucla.edu/weather-synopsis/weather-synopsis-february-23-2026/ Parent: https://atmos.ucla.edu/category/weather-synopsis/


Day	Date	High/Low	Forecast
Mon	23rd	77/58	Mostly sunny day with variable high clouds. Mostly cloudy evening with high clouds.
Tue	24th	76/58	Mostly cloudy day with high clouds. Partly cloudy evening with high clouds.
Wed	25th	76/60	Mostly sunny day with scattered high clouds. Scattered evening high clouds.
Thu	26th	80/62	Mostly sunny day with scattered high clouds. Scattered evening high clouds.
Fri	27th	83/63	Mostly sunny day with scattered high clouds. Scattered evening high clouds.

Synopsis

Southern California is back to a high pressure dominated, wind flow pattern. After midweek, most of northern California should also fall into a dry weather pattern. The current, weak, low level, off-shore flow will temporarily turn on-shore (or at least, marginally on-shore) tomorrow through Wednesday. A Pacific storm up north has tapped into an atmospheric river. Wet weather is expected over most of northern California tomorrow (“warm” storm departing region Wednesday). High pressure aloft will rebound in strength over the Southland in the Thursday-Friday period. Slightly cooler weather is anticipated thereafter, but temperatures should remain above normal through the weekend.

The predicted, weak on-shore flow tomorrow may promote some marine layer clouds tomorrow through Wednesday morning, but for most areas, high clouds should be the main cloud type (some varying amounts of high clouds expected all week). The predicted high pressure for this week may get strong enough to promote record high temperatures (for the dates) late this week. For this forecast, I kept the numbers on the conservative side (often a tricky forecast near the coast as a slightly, early ocean breeze could hinder strong warming). Potentially, UCLA could get several degrees higher than I show for Friday (even Thursday may get a few degrees higher than I show today). It wouldn’t surprise me if isolated 90 degree readings in well inland locales happen (first of the year?).

All the longer range. models show a weak, upper air trough approaching the state late Sunday into Monday. Some light showers are expected over parts of northern California (mostly mountains). Depending on which model is right, some marine layer induced drizzle or light rain could occur Monday morning in the Southland (at the least, return of seasonable temperatures with widespread, marine layer clouds west of the mountains). Most models weaken the trough and have it passing east of the state by Tuesday. This should lead to a minor uptick in temperatures (back to mostly sunny weather). Some longer range models show a steady warming trend for the rest of next week, but some models show a cool, northwest wind flow pattern (at most, temperatures may get slightly warmer than normal for a day or two). At this point, it’s a coin toss forecast.

Next issued forecast may be on Thursday, 26 February…time permitting.