Tuesday, March 17 – Sunday, March 22, 2026
A significant early-season heat event will dominate the South Pasadena forecast this week, with temperatures running 20–30 degrees above normal and pushing into the 90s—well beyond typical mid-March conditions.
Tuesday (March 17) — High: 96°F | Low: 59°F
Peak heat day. Expect mid-to-upper 90s inland, clear skies, and very dry air.
Overnight lows remain mild in the upper 50s to near 60, offering limited relief.
A formal Extreme Heat Warning is in effect across much of the LA Basin.
Wednesday (March 18) — High: 92°F | Low: 58°F
Still very hot, though slightly easing—highs in the low 90s.
Light winds, continued dry conditions, and elevated UV exposure.
Thursday (March 19) — High: 89°F | Low: 57°F
Heat begins to taper but remains well above seasonal norms.
Highs in the upper 80s to near 90. Clear to mostly sunny.
Friday (March 20) — High: 84°F | Low: 56°F
Noticeable cooling trend begins.
Highs drop into the low-to-mid 80s, still warm but less extreme.
Evening conditions more comfortable.
Saturday (March 21) — High: 77°F | Low: 54°F
Transition day.
Highs in the mid-to-upper 70s, with a return to more typical March conditions.
Partly cloudy at times.
Sunday (March 22) — High: 72°F | Low: 53°F
Cooler and more seasonal.
Highs in the low 70s, with increasing cloud cover and a slight chance of a pattern shift toward unsettled weather beyond the weekend.
