What is the long range weather forecast for Pasadena, CA?

The Old Farmer's Almanac provides a 60-day extended weather forecast for Pasadena, CA. This includes temperature trends, precipitation predictions, and seasonal weather patterns based on our traditional forecasting methods combined with modern meteorological science.

How accurate is the Almanac long range weather forecast?

The Old Farmer's Almanac claims an 80% accuracy rate for its long range forecasts. Our forecasting method uses a secret formula that considers sunspot activity, tidal action, and other factors along with current meteorological conditions.

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Long-Range Weather Forecast for Pasadena, CA

Location Pasadena, CA

60-Day Weather Forecast

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)

November 2026 Long Range Weather Forecast for Pacific Southwest
Dates	Weather Conditions
November	temperature precipitation

Map showing Old Farmer's Almanac long range weather region number 16

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