109
FNUS75 KPSR 311139
FWSPSR

Spot Forecast for Island Fire...USWFS
National Weather Service Phoenix AZ
439 AM MST Fri Jul 31 2026

Forecast is based on forecast start time of 0700 MST on July 31.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Hot and dry conditions will continue into the weekend with
persistent southerly winds mostly between 5-10 mph. Periodic
breeziness will be possible during the afternoon hours with gusts
as high as 15-20 mph. Expect overnight and early morning humidities
around 30-35% and minimum afternoon humidities between 10-15%.
Record or near record high temperatures are expected with readings
topping out at 116-119 degrees.

Note...Additional Fire Weather Forecast information can be found
in the Area Forecast Discussion. See product PHXAFDPSR.

.TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 116.
Min humidity........10-15 percent.
Wind (20 ft)........South winds 5 to 10 mph.

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 88.
Max humidity........32-37 percent.
Wind (20 ft)........South winds 5 to 11 mph.

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 119.
Min humidity........8-13 percent.
Wind (20 ft)........South winds 5 to 10 mph.

$$
Forecaster...CK
Requested by...Chayne Best
Type of request...WILDFIRE
.TAG 2618535.2/PSR
.DELDT 07/31/26
.FormatterVersion 2.0.0
.EMAIL Chayne_best@fws.gov