014
FXUS65 KBOI 300644
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
1244 AM MDT WED SEP 30 2026
UPDATE
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
- BREEZY AFTERNOON WINDS ACROSS THE WESTERN SNAKE PLAIN
WEDNESDAY.
- DRY WITH ABOVE NORMAL TEMPERATURES WARMING THROUGH THIS
WEEKEND.
SHORT TERM /THROUGH FRIDAY NIGHT/
ISSUED 229 PM MDT TUE SEP 29 2026
DRY WESTERLY FLOW WILL REMAIN IN PLACE THROUGH THURSDAY. WITH
LITTLE CHANGE IN THE PATTERN TEMPERATURES WILL HOLD FAIRLY
STEADY. THE COOL NIGHTS AND WARM AFTERNOONS KEEP THE WIDE
DIURNAL TEMPERATURE SPREADS (30-45 DEGREES) IN PLACE. WEDNESDAY
WILL BRING ANOTHER ROUND OF BREEZY AFTERNOON WINDS, MOSTLY
ACROSS THE SNAKE PLAIN. HIGH TEMPERATURES WILL HOLD AROUND 5
DEGREES ABOVE NORMAL, OR UPPER 70S AT LOWER ELEVATIONS.
LONG TERM /SATURDAY THROUGH WEDNESDAY/
ISSUED 229 PM MDT TUE SEP 29 2026
WARMING PICKS UP OVER THE WEEKEND IN RESPONSE TO A BUILDING
RIDGE. TEMPERATURES WILL PUSH TO AROUND 10 DEGREES ABOVE
NORMAL, PUTTING LOWER ELEVATIONS INTO THE LOW-MID 80S STARTING
FRIDAY. MODELS CONTINUE TO SHOW A MINOR UPPER LOW TRACK ACROSS
SOUTHERN OR/ID ON MONDAY. THE PRECIPITATION THREAT REMAINS
MINIMAL WITH DEVELOPMENT LIKELY LIMITED TO HIGHER TERRAIN MONDAY
AFTERNOON. TEMPERATURES REMAIN WELL ABOVE NORMAL HEADING INTO
NEXT WEEK AS A DRY WEATHER PATTERN CONTINUES.
AVIATION /06Z WEDNESDAY THROUGH THURSDAY/
ISSUED 1231 AM MDT WED SEP 30 2026
VFR WITH MOSTLY CLEAR SKIES. A 10% CHANCE OF FOG AT KBKE AND
KMYL THIS MORNING. SURFACE WINDS: VARIABLE LESS THAN 10 KT, THEN
SW-NW 5-15 KT LATE MORNING/AFTERNOON. AFTERNOON GUSTS TO 15-20
KT FOR W SNAKE PLAIN. WINDS ALOFT AT 10KFT MSL: NW 10-20 KT.
KBOI...VFR WITH CLEAR SKIES. SURFACE WINDS: VARIABLE 3-6 KT,
THEN NW 6-12 KT LATE MORNING WITH OCCASIONAL AFTERNOON GUSTS TO
15-20 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.....SH
SHORT TERM...DG
LONG TERM....DG
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