924
NZUS99 KBOI 230321
TXTSFD
IDAHO STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
921 PM MDT WED JUL 22 2026
MONSOONAL MOISTURE WILL CONTINUE TO DRIVE SCATTERED SHOWERS AND THUNDERSTORMS
ACROSS THE STATE THROUGH THURSDAY. STORMS WILL BE CAPABLE OF PRODUCING HEAVY
RAINFALL, LEADING TO A RISK OF FLASH FLOODING AND DEBRIS FLOWS ON STEEP TERRAIN
AND BURN SCARS. SOUTHERN/EASTERN IDAHO WILL SEE A MIX OF ISOLATED SHOWERS AND
THUNDERSTORMS THROUGH FRIDAY, BEFORE DRIER AIR SWEEPS INTO THE REGION. OVER THE
WEEKEND, HOT, DRY, AND BREEZY CONDITIONS MOVE IN STATEWIDE. MAX TEMPERATURES
FRIDAY THROUGH THE WEEKEND IN LOWER ELEVATIONS WILL EXCEED 100 DEGREES EACH
DAY. THESE TEMPS, WITH LOW RELATIVE HUMIDITY AND GUSTY WINDS WILL LEAD TO
ELEVATED FIRE WEATHER, THROUGH SUNDAY. ALSO THROUGH THE WEEKEND, THE FAR
EASTERN AND SOUTHEASTERN BORDER AREAS OF THE STATE HAVE A CONTINUED CHANCE OF
THUNDER, THOUGH MOST ACTIVITY WILL BE IN UTAH AND WYOMING. WILDFIRE SMOKE WILL
CONTINUE TO CAUSE PROLONGED AIR QUALITY IMPACTS AND HAZY CONDITIONS THROUGH THE
PERIOD.
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