627
FXUS65 KBOI 040016
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
616 PM MDT FRI JUL 3 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- HOT WEATHER EXPECTED THROUGH INDEPENDENCE DAY HOLIDAY
WEEKEND.
- SLIGHT CHANCE OF THUNDERSTORMS OVER CENTRAL ID MOUNTAINS AND
SOUTH-CENTRAL OR SUNDAY AFTERNOON, WITH CHANCES EXPANDING
AREA-WIDE MONDAY.
- HOT AND DRY WEATHER TO CONTINUE THROUGH NEXT WEEK.
SHORT TERM /THROUGH SUNDAY NIGHT/
ISSUED 229 PM MDT FRI JUL 3 2026
THE SURFACE AND ALOFT WILL BRING CLEAR SKIES ACROSS THE AREA
TONIGHT AND HOT AND DRY WEATHER ON SATURDAY. THE HOT WEATHER
WILL CONTINUE ON SUNDAY, WITH AFTERNOON TEMPERATURES REACHING
THE MID TO UPPER 90S IN MOST LOWER VALLEY LOCATIONS AND INTO THE
MID-80S IN MOUNTAIN COMMUNITIES. MID-LEVEL MOISTURE WILL BEGIN
TO INCREASE ON SUNDAY AFTERNOON ACROSS EASTERN OREGON BRINGING
ABOUT A 20 PERCENT CHANCE OF ISOLATED THUNDERSTORMS CAPABLE OF
PRODUCING GUSTY WINDS.
LONG TERM /MONDAY THROUGH FRIDAY/
ISSUED 229 PM MDT FRI JUL 3 2026
THE FOUR CORNERS REGION WITH CONTINUED HOT TEMPERATURES AND
SOUTHWEST FLOW OVER THE AREA. A SHORTWAVE WILL MOVE ACROSS THE
AREA ON MONDAY MORNING AS MONSOONAL MOISTURE INCREASES FROM THE
SOUTH. A 20-40 PERCENT CHANCE OF THUNDERSTORMS ON MONDAY MORNING
INTO THE AFTERNOON AS THIS FEATURE MOVES ACROSS EASTERN OR AND
SOUTHWEST ID. CURRENT FORECAST DOES NOT HAVE THIS HANDLED WELL,
BUT SHOULD COME INTO BETTER AGREEMENT AS THE MESO MODELS COME
INTO FOCUS. RESIDUAL MOISTURE CONTINUES INTO TUESDAY WITH A
CHANCE OF THUNDERSTORMS ON THE IDAHO SIDE. WESTERLY FLOW SHUNTS
THE MOISTURE TO THE EAST ON WEDNESDAY AND THURSDAY WITH DRY AND
BREEZY CONDITIONS AND SLIGHTLY COOLER TEMPERATURES. TEMPERATURES
MONDAY THROUGH WEDNESDAY AROUND 5- 10 DEGREES ABOVE NORMAL
COOLING TO NEAR NORMAL ON THURSDAY AND FRIDAY.
AVIATION /00Z SATURDAY THROUGH SUNDAY/
ISSUED 559 PM MDT FRI JUL 3 2026
VFR WITH FEW-SCT CUMULUS THIS EVENING. ISOLATED THUNDERSTORMS
SE OF KTWF, CAPABLE OF OUTFLOWS UP TO 20-30 KT. THUNDERSTORMS
DIMINISHING AROUND SUNSET. SURFACE WINDS: W-NW 5-15 KT BECOMING
VARIABLE 10KT OR LESS AFTER SUNSET, EXCEPT NW 10-15 KT WITH
GUSTS UP TO 20 KT NEAR KBKE THROUGH MIDNIGHT. WINDS ALOFT AT
10KFT MSL: SW 10-20 KT.
KBOI...VFR WITH MOSTLY CLEAR SKIES. SURFACE WINDS: NW 5-10 KT,
SHIFTING TO SE 5-10KT AFTER SUNSET, THEN BACK TO NW 7-12 KT
SATURDAY AFTERNOON.
WEEKEND OUTLOOK...VFR. SLIGHT CHANCE OF THUNDERSTORMS LATE
SATURDAY IN CENTRAL OR AND OVER CENTRAL ID MTNS AND S-CENTRAL OR
SUNDAY AFTERNOON. HIGH DENSITY ALTITUDE IN AFTERNOONS DUE TO
HEAT. SURFACE WINDS: SW-NW 5-15 KT DURING AFTERNOON, MOSTLY
LIGHT AND VARIABLE AT NIGHT. GUSTY NW VALLEY WINDS 20-30 KT
NEAR KBKE AND KONO IN THE EVENINGS. SHOWERS AND THUNDERSTORMS
CAPABLE OF PRODUCING ERRATIC OUTFLOW WIND GUSTS 30-40 KT.
BOI WATCHES/WARNINGS/ADVISORIES
ID...NONE.
OR...NONE.
WWW.WEATHER.GOV/BOISE
INTERACT WITH US VIA SOCIAL MEDIA:
WWW.FACEBOOK.COM/NWSBOISE
WWW.X.COM/NWSBOISE
AVIATION.....JY
SHORT TERM...JB
LONG TERM....KA
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