Tucson, AZ 
164 FXUS65 KTWC 262008 AFDTWC Area Forecast Discussion National Weather Service Tucson AZ 108 PM MST Sun Oct 26 2025 .SYNOPSIS...Dry conditions will prevail through the end of the week, with high temperatures warming to several degrees above normal. && .DISCUSSION...Mostly clear skies today with a few passing high clouds making for a calm end of October day. High pressure continues to be the main story and driver of our weather and will continue for the next 7 to 10 days. The ridging that we will experience through tomorrow will flatten some due to the passing of a strong low pressure system now in the southern Idaho/ Montana area. Once the low has passed, greater amplitude ridging will set up increasing temperatures 3-7 degrees above normal. High temperature throughout the work week will be in the upper 80s to low 90s in the lower deserts from Tucson westward and in the lower to mid 80s across the lower elevation locations of Santa Cruz, Cochise and Graham counties. There may be a few degrees of cooling across the eastern areas (Cochise, Graham and Greenlee counties) on Wednesday as low level flow switches around to an easterly direction and some `cooler air` is pulled in from the east More significant riding is forecast to build early next week (7 to 10 days from now) bringing influencing increasing high temperatures. The Climate Prediction Center has southeastern Arizona in a 70-90 percent chance for above normal temperatures. && .AVIATION...Valid through 28/00Z SKC across much of SE Arizona the some FEW high clouds passing above KSAD and northeastward AOA 25-30k ft AGL. FEW clouds AOA 25-30k ft AGL will push southwestward towards KTUS by 27/00Z. Clouds will dissipate and become SKC by 27/10Z and remain so for the rest of the forecast period. SFC winds will be from the northwest less than 12 kts becoming southeast aft 27/05Z. SFC winds become northwesterly again aft 27/21Z and remain so for the rest of the forecast period. Aviation discussion not updated for TAF amendments. && .FIRE WEATHER...Dry conditions are expected the next 7 days. High temperatures will be near normal today, rising to 3-7 degrees above normal this week. 20-foot winds will generally be 15 mph or less, with occasional gusts to 20-25 mph through the end of the week. Minimum RH values will be in the 12-22 percent range in most locations this week. && && .TWC WATCHES/WARNINGS/ADVISORIES... None. && $$ Malarkey Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
