Long-Range Weather Forecast for Pacific Southwest

September 2026 Long Range Weather Forecast for Pacific Southwest

Dates	Weather Conditions
Sep 1-9	Sunny, warm
Sep 10-14	Plenty of sun; cool north, hot south
Sep 15-22	A few showers north, sunny south; cool
Sep 23-30	Isolated showers, cool
September	temperature 72° (avg.) precipitation 0.3" (0.2" above avg.)

October 2026 Long Range Weather Forecast for Pacific Southwest

Dates	Weather Conditions
Oct 1-9	Isolated showers, then sunny; cool
Oct 10-19	Sunny; warm, then turning cool
Oct 20-22	Rainy, cool
Oct 23-31	Sunny, warm
October	temperature 65° (1° below avg.) precipitation 0.6" (0.5" above avg. north, 0.3" below south)

12-Month Long-Range Weather Outlook

November 2025 to October 2026

Winter will be warmer and drier than normal, with below-normal mountain snows. The coldest temperatures will occur in late January and late February. The stormiest periods will be in late November, mid-January, and late February. April and May will be warmer than normal with below-normal rainfall. Summer will be hotter and drier than normal, with the hottest periods in early and late June and mid- to late August. September and October will be cooler than normal, with above-normal rainfall in the north and below-normal south.

See the complete 12-month weather forecast in The Old Farmer’s Almanac..

Weather Trend Graph

November 2025 to October 2026