951
NZUS99 KBOI 160349
TXTSFD
IDAHO STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
949 PM MDT FRI MAY 15 2026
A COOL UPPER LEVEL TROUGH MOVES INTO THE PACIFIC NORTHWEST SATURDAY. THIS
SYSTEM WILL USHER IN UNSEASONABLY COOL AIR, WITH DAYTIME TEMPERATURES PLUNGING
10 TO 15 DEGREES BELOW NORMAL STATEWIDE FOR THE LATTER HALF OF THE WEEKEND AND
EARLY NEXT WEEK. SCATTERED RAIN AND MOUNTAIN SNOW SHOWERS WILL ACCOMPANY THIS
COLD FRONT, WITH SNOW LEVELS POTENTIALLY DROPPING AS LOW AS 4,000 FEET IN THE
CENTRAL AND NORTHERN MOUNTAINS. AREAS OF FROST IN AGRICULTURAL AREAS OF IDAHO
ARE POSSIBLE ON MONDAY MORNING. WARMER AND DRIER CONDITIONS ARE EXPECTED TO
RETURN BY THE MIDDLE OF NEXT WEEK AS HIGH PRESSURE BUILDS BACK INTO THE REGION.
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