2020 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

October 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Oct 1-4Rainy periods, cool
Oct 5-12Sunny, turning warm
Oct 13-17Showers, then sunny, cool
Oct 18-23Rainy periods, cool
Oct 24-31Sunny, cool
Octobertemperature 63° (2° below avg.)
precipitation 0.8" (1" above avg. north, 0.5" below south)

November 2020 Long Range Weather Forecast for Pacific Southwest
DatesWeather Conditions
Nov 1-8Rain, then sunny, cool north; sunny, turning warm south
Nov 9-15Scattered showers, cool
Nov 16-19Sunny, warm
Nov 20-30Rain, then sunny, cool
Novembertemperature 56° (2° below avg.)
precipitation 0.5" (1" below avg.)

Annual Weather Summary
November 2019 to October 2020

Winter will be cooler than normal. Rainfall will be below normal in the north and above normal in the south, with below-normal mountain snows. The coolest temperatures will occur in mid- and late December, mid- to late January, early to mid-February, and early and late March. The stormiest periods will be in late November, mid- to late December, and early February; from late February into early March; and in mid- and late March. April and May will be cooler than normal, on average, with rainfall below normal in the north and above normal in the south. Summer will be cooler than normal, with rainfall slightly above normal. The hottest periods will be in mid-July and late August. September and October will be slightly cooler than normal, on average, with rainfall above normal in the north and below normal in the south.

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 2019 to October 2020

Temperature and Precipitation Chart, November 2019 to October 2020 for Pacific Southwest Region

Reader Comments

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None of this is even close to being correct. It is always cooler than what is predicted or hot, much hotter than predicted. It is not worth the post to have this website. 118F in the San Fernando Valley of Los Angeles is just wildly crazy. That is Death Valley weather and no one really wants to live there.


It doesn't seem like it. It's like an inferno today. I'm here in Ventura county 5 min away from the beach with 90+ degree weather, it's terrible.

Completely off - again

Wrong, again...and as usual. It's mid-October and temperatures are SCORCHING (high 90s...for a WEEK). And no rain. At all.

I don't know why anybody uses the Farmer's Almanac which is presumptive and sounds apparently uses 1820s technology. It has been wrong every. Year. For. The. Last. Five. Years. EVERY YEAR. Do NOT rely on the Farmer's Almanac. The statisticians are using models that no longer work.

Now We know

Been stocking up on blankets headgear boots etc. Gonna be a bad winter.

Too bad it's wrong

Temps in the 100s here in the coast valley forge straight days. Its October for Petes Sake! Add the thick layer of smoke and you've got Dantes inferno. What is going on??

Heat came early.So what!

The heat came early. Better hope rain comes early as well. The entire west coast needs rain asap.

Inaccuracies are OK

People leaving angry comments obviously don’t understand an almanac is for “predictions.” If the weathers different, change your clothes don’t cry on the internet about it.


No longer so easy to forecast, is it? This prediction is way off. Last week the SF bay area and northern CA had record breaking heat.

If you’re in Temecula here’s the reason it may not snow

So if it’s not snowing in your area the reasoning is 1. It is a hot place 2. It’s not cold enough 3. It needs to rain but if it’s at 100° it will not rain. That’s the reasoning don’t be mad because of that if the weather lies it doesn’t mean you can say Ugh Here’s what you should do if you really want it to snow 1. Go to a cold city or The mountains 2. Wait until December The weather can change 3. Fix your issues and just have fun with your day. That’s how If you say I’m lying I’m just giving you an example Bye.

In my city it might snow, But

In my city it might snow, But if it’s true I’m going to freak outs And play in the snow but if you are all in a different country like Los Angeles or New Mexico That’s all right I hope you all get snow to And if you get snow I wish you the best of luck And don’t be mad if it doesn’t snow I want to make your day happy an unique and flexible so yeah. Farmers Is a great Website And it tells the truth on whether it will be snowing Or diff kinds but I hope you enjoy the snow when it comes byee.