939
FXUS65 KBOI 292029
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
229 PM MDT TUE SEP 29 2026
KEY MESSAGES
- BREEZY AFTERNOON WINDS ACROSS THE WESTERN SNAKE PLAIN
WEDNESDAY.
- DRY WITH ABOVE NORMAL TEMPERATURES WARMING THROUGH THIS
WEEKEND.
SHORT TERM /THROUGH THURSDAY NIGHT/
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 /FRIDAY THROUGH TUESDAY/
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 /12Z TUESDAY THROUGH WEDNESDAY/
ISSUED 536 AM MDT TUE SEP 29 2026
VFR. SURFACE WINDS: VARIABLE UP TO 10 KT, THEN W TO NW 5-15 KT
DURING THE AFTERNOON. AFTERNOON GUSTS AROUND 20-25 KT BETWEEN
KBOI-KJER. WINDS ALOFT AT 10KFT MSL: NW 10-20 KT.
KBOI...VFR. SURFACE WINDS: VARIABLE AROUND 5 KT, THEN NW 7-12
KT WITH GUSTS AROUND 20 KT THIS AFTERNOON.
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
SHORT TERM...DG
LONG TERM....DG
AVIATION.....SH
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