668
NZUS99 KBOI 271224
TXTSFD
IDAHO STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
524 AM MST SAT DEC 27 2025
PRECIPITATION AND GUSTY WINDS ASSOCIATED WITH A COLD FRONT WILL DECREASE
SATURDAY NIGHT AS THE SYSTEM EXITS THE REGION. HIGH PRESSURE WILL BUILD OVER
IDAHO BEGINNING SUNDAY AND IS EXPECTED TO DOMINATE THE WEATHER PATTERN THROUGH
EARLY WEDNESDAY. THIS WILL RESULT IN GENERALLY DRY CONDITIONS AND LIGHT WINDS
ACROSS THE STATE. THE STABLE ATMOSPHERE WILL LIKELY LEAD TO THE FORMATION OF
STRONG VALLEY TEMPERATURE INVERSIONS, RESULTING IN AREAS OF FOG, LOW STRATUS,
AND POTENTIAL AIR STAGNATION ISSUES IN THE VALLEYS WHILE MOUNTAINS REMAIN
MOSTLY SUNNY. THE HIGH PRESSURE RIDGE IS FORECAST TO WEAKEN AND SHIFT EASTWARD
BY LATE WEDNESDAY. THIS WILL ALLOW A RETURN TO AN UNSETTLED PATTERN WITH
INCREASING CHANCES FOR MOUNTAIN SNOW AND VALLEY RAIN OR SNOW SHOWERS CONTINUING
THROUGH THE END OF THE WEEK.
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