580
FXUS65 KBOI 131955
AFDBOI
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
155 PM MDT SAT JUN 13 2026
KEY MESSAGES
- ABOVE NORMAL TEMPERATURES CONTINUING THROUGH NEXT WEEK.
- TUESDAY IS THE HOTTEST DAY AND WILL BE ACCOMPANIED BY GUSTY
WINDS AND VERY DRY CONDITIONS.
- A CHANCE OF SHOWERS AND THUNDERSTORMS RETURNS TO THE AREA
NEXT FRIDAY.
SHORT TERM /THROUGH MONDAY NIGHT/
AS AN UPPER RIDGE BUILDS ALONG THE COAST, A PAIR OF SHORTWAVE
TROUGHS DROPPING DOWN THE EAST SIDE WILL KEEP THE REGION UNDER
NORTHWEST FLOW. THIS WILL SLOW OUR HEATING WHILE KEEPING DRY,
AND AT TIMES BREEZY CONDITIONS THROUGH SUNDAY. THE UPPER RIDGE
EXPANDS INLAND ON MONDAY, PUSHING VALLEYS TEMPERATURES INTO THE
LOW 90S. A WEAK UPPER WAVE EMBEDDED IN THE FLOW WILL DRAG CLOUDS
ACROSS THE AREA LATE MONDAY/MONDAY NIGHT. IT REMAINS DRY
THROUGH MONDAY NIGHT AS STABLE CONDITIONS ALOFT CAP ANY CHANCE
FOR PRECIPITATION TO DEVELOP.
LONG TERM /TUESDAY THROUGH SATURDAY/
TUESDAY WILL BE THE WARMEST DAY FOR MOST THE AREA THIS WEEK,
WITH VALLEY LOCATIONS REACHING THE MID TO UPPER 90S. THE RIDGE
BRINGING THE WARM TEMPS BEGINS TO FLATTEN AS A CANADIAN TROUGH
PASSES TO THE NORTH. THE FLATTENING WILL DROP TEMPS BY A FEW
DEGREES WEDNESDAY AND THURSDAY, BUT ALSO BRING WIND GUSTS 30 TO
40 MPH TUESDAY EVENING WITH WINDS REMAINING ELEVATED THROUGH THE
WEEK. WINDS ARE STRONGEST IN THE SNAKE PLAIN WEDNESDAY AND
THURSDAY. BY FRIDAY, THE RIDGE OPENS BACK UP AND TEMPERATURES IN
VALLEYS AGAIN CLIMB TO THE MID 90S BEFORE ANOTHER WEAK LOW
MOVES IN THAT EVENING. THIS LOW WILL BRING A SLIGHT CHANCE OF
THUNDERSTORMS ALONG THE NEVADA BORDER FRIDAY AND INTO CENTRAL
IDAHO SATURDAY.
AVIATION /18Z SATURDAY THROUGH SUNDAY/
ISSUED 1206 PM MDT SAT JUN 13 2026
VFR. SURFACE WINDS: BECOMING NW-N 10-20 KT WITH GUSTS TO 20-30
KT THIS AFTERNOON. WINDS ALOFT AT 10KFT MSL: NW-N 10-20 KT.
KBOI...VFR. SURFACE WINDS: W-N 5-15 KT WITH AFTERNOON GUSTS TO
20 KT.
SUNDAY OUTLOOK...VFR. A FEW AFTERNOON MOUNTAIN CUMULUS. SURFACE
WINDS: VARIABLE 5-15 KT SUNDAY AM, THEN NW-NE 5-15 KT WITH
GUSTS AROUND 20 KT IN THE 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....JM
AVIATION.....JM
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