2021 Long Range Weather Forecast for Pacific Southwest

Get the Long Range Weather for Your Location

See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of The 2021 Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific.

Free 2-Month Weather Forecast

March 2021 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Mar 1-9Showers, then sunny, turning warm
Mar 10-20Showers, then sunny; cool north, warm south
Mar 21-26A few showers north; sunny, mild south
Mar 27-31Rainy periods, cool
Marchtemperature 57.5° (1° below avg. north, 2° above south)
precipitation 0.5" (2" below avg.)

April 2021 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Apr 1-8Rainy periods, cool
Apr 9-15Scattered showers, cool
Apr 16-24Sunny, turning warm
Apr 25-30Scattered showers, cooler
Apriltemperature 59° (1° below avg.)
precipitation 1.3" (0.5" below avg. north, 1" above south)

Annual Weather Summary
November 2020 to October 2021

Winter will be cooler and drier than normal, with below-normal mountain snows. The coldest temperatures will occur in late December, late January, and mid- to late February. The stormiest periods will be from late January into early February, mid- to late February, and late March into early April. April and May will be cooler than normal, with rainfall below normal in the north and above normal in the south. Summer temperatures will be cooler than normal inland and warmer near the coast, with slightly above-normal rainfall. The hottest periods will be in mid-June and mid- to late August. September and October will be warmer and rainier than normal.

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

About the Pacific Southwest Region

The Pacific Southwest long range weather region includes all or part of the following states: CALIFORNIA (Long Beach, Los Angeles, San Diego, San Francisco, San Jose).

Pacific Southwest Neighboring Regions

Here are the regions that neighbor the Pacific Southwest long range weather region:

Temperature and Precipitation November 2020 to October 2021

Temperature and Precipitation Chart, November 2020 to October 2021 for Pacific Southwest Region

Reader Comments

Leave a Comment

....Choose April

To add.....A heat wave in Ireland is 77°, Berkeley in July is at least this temp. April is the best option.

Big bear city, ca

Weather for November

Weather for Big Bear in

Weather for Big Bear in November should be mid 40s to low 50s during the day and mid to low 30s at night. Rain should be throughout. It doesn’t really snow up here until around January.

Wedding weather

What is expected Nov 2nd in Amador County?

October 5th 2019 in Camarillo

October 5th 2019 in Camarillo for a wedding, thoughts?


Should be a nice day for a wedding. Camarillo is beautiful!

Carmel ca weather March 30, 2019

What is expected 3/30/2019 in Carmel, CA ? For outdoor wedding?


Thoughts on weather for a wedding October 5, 2019 later afternoon in southern CA


It will be sunny with scattered clouds. High of 72F.

October- my favorite month of

October- my favorite month of the year. ..most likely warm and dry in the day and slightly cooler night, but not cold. Quite possibly Santa Ana winds and brush fires in the foothills.

This October (2018), however, has been incredibly uncharacteristic with two freak rain storms thus far.. no complaints here, though. I love heavy rain and lightening storms!