2019 Long Range Weather Forecast for Tucson, AZ

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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 annual Old Farmer’s Almanac, available online and in stores.

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

Free 2-Month Weather Forecast

September 2018 Long Range Weather Forecast for Desert Southwest
DatesWeather Conditions
Sep 1-4Scattered t-storms, cool
Sep 5-11Sunny, warm
Sep 12-18Isolated showers, warm east; sunny, cool west
Sep 19-26Sunny, cool
Sep 27-30Scattered showers, cool
Septembertemperature 78° (1° below avg.)
precipitation 0.6" (0.4" below avg.)

October 2018 Long Range Weather Forecast for Desert Southwest
DatesWeather Conditions
Oct 1-6T-storms, then sunny, cool
Oct 7-16Sunny, warm
Oct 17-22Sunny, cool
Oct 23-31Scattered showers east, sunny west; turning cool
Octobertemperature 68° (avg.)
precipitation 0.8" (0.2" below avg.)

Annual Weather Summary: November 2018 to October 2019

Winter will be colder than normal, with above-normal precipitation. The coldest periods will be in mid- and late December, early and late January, and mid-February. Snowfall will be below normal in the east and above normal in other places that receive snow, with the snowiest periods in late December, early January, and mid-February. April and May will be warmer and slightly drier than normal. Summer will be slightly hotter than normal in most of the region, with slightly below-normal rainfall. The hottest periods will occur in much of June, mid-July, and early to mid-August. September and October will be rainier than normal, with near- or below-normal temperatures.

Map showing Old Farmer's Almanac long range weather region number 14

About the Desert Southwest Region

The Desert Southwest long range weather region includes all or part of the following states: ARIZONA (Glendale, Mesa, Phoenix, Scottsdale, Tucson), CALIFORNIA (Brawley, Calexico, Coachella, El Centro, Indio), COLORADO (Cortez, Dolores, Durango, Mancos, Towaoc), NEVADA (Henderson, Las Vegas, North Las Vegas, Pahrump, Winchester), NEW MEXICO (Albuquerque, Farmington, Las Cruces, Roswell, Santa Fe), TEXAS (El Paso, Fabens, Pecos, San Elizario, Socorro), UTAH (Aneth, Blanding, Bluff, Montezuma Creek, White Mesa).

Desert Southwest Neighboring Regions

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

Temperature and Precipitation November 2018 to October 2019

Temperature and Precipitation Chart, November 2018 to October 2019 for Tucson, AZ

Reader Comments

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temperature in Phoenix

Hi, Edward, I completely agree with your analysis. I am currently reading about how to reduce my carbon footprint and trying to paint my house shingles with a paint that is suppose to reduce surface temperature from 174degrees to just 10degrees above outside temperature. Why doesn't anyone or any agency do anything to combat this affect. Why do people not have any common sense? I am just in sales and not a particularly smart person but at least i am trying to better myself and not leave a mess for my children.

Forecast correct for Phoenix

My first time here but had been wondering if the oldtime Almanac forecasts were available, as I care for outdoors animals and have been so concerned about them with the winter so cold, that is, cold for us Phoenicians. Sure, our temps are warm for the rest of the country but if living here for a while, one's temp adjusts and so this is indeed cold for us here. In fact, I don't recall temperatures this cold in my 20 years here.
Also, I have observed a '20 degree cooler feeling factor' with our very low humidity. Namely, no matter what the temperature, with the dryness here, it always feels 20 degrees cooler - based on my growing up experience in Wisconsin - than the actual temperature. So, 40 degrees here, as the temp here is right now, feels like 20 degrees. If it were 80 degrees, feels like 60. If 110 degrees, yeah, it's hot, feels like 90 degrees.
Thanks for the forecast so I can best help the outdoor animals I care for! Will look around your great site! Many thanks!

Forecast incorrect

Southern NV - Las Vegas area during December, January, & February have been unusually warm. Daytime temps averaging mid 60's to low 70's. My apple trees are blooming - in the first week of February! My summer tomatoes are still producing and never died back. My blueberry bushes only went dormant for 3 weeks because I had to force dormancy by removing the leaves. Global warming & climate changes are happening.

Vegas in winter

Thanks for the update!

FINALLY! SNOW!!!!

Woke up on this beautiful February day (my son's birthday!) to see our little homestead in the Estancia Valley covered in white loveliness. Maybe NM will finally get the moisture we need!

Warmer than normal

Warmest Jan and Feb that I have exp'd in Southern Nevada. We are in the 3rd week of upper 70s, almost 80 the other day.

Warmest winter months...

The Pacific Ocean and other influences may not be in line with our predictions… We can’t fool Mother Nature—but we hope you get the weather you want!

Projected summer temps

Projected temperatures in the Desert Southwest between June and Sept 86 degrees? i wish.Page 233 of the Almanac is where i am looking. Am i reading something wrong here? That can not be right

June to Sept temps

The 86 degree average that you see applies to the entire region, and it is the average; not the spot-on exact temp for every square inch of the region. Thanks for asking!

desert southwest temperature forecasts

i think you might want to differentiate between to igh, middle & lower desert in your future almanacs.

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