Sacramento started Monday under clear skies and low humidity, with temperatures in the low 60s and north winds already kicking up. A Red Flag Warning is in place through 8:00 p.m. on Monday, May 18, 2026, which means any stray spark could turn into a fast-moving fire. Expect sunshine and a high near 87°F this afternoon, with the strongest gusts lining up along and west of the I-5 corridor.
Afternoon Winds Pick Up
North to northwest winds are set to stay on the breezy side through the afternoon, with sustained speeds around 12–17 mph and gusts up to about 31 mph expected Monday evening. Those gusts will be strongest near the Delta and across the western Sacramento Valley. Extra caution is advised for outdoor work and for anyone using equipment that might throw sparks, according to the National Weather Service Sacramento.
Heat Builds Later This Week
After Monday, temperatures head steadily upward: highs near 92°F on Tuesday, climbing into the mid 90s on Wednesday and nearing 100°F on Thursday, May 21, 2026. The building heat increases stress for outdoor workers and older residents. Sacramento County keeps a list of cooling centers and heat resources for people who need relief, posted on the county site at Sacramento County.
What To Watch
Low daytime humidity and gusty winds mean even small fires can spread quickly. Avoid outdoor burning, discard cigarettes carefully and, if possible, postpone yard work that might create sparks. If you have outdoor plans, try to shift them into the morning or evening, stay hydrated and check the latest forecast and alerts before heading out.
