textproduct: Boise

KEY MESSAGES

- Breezy today. Near to slightly above normal temperatures through the week, rising to above normal by the weekend.

- Scattered showers near the Idaho/Nevada border today, and across the north on Thursday.

- Isolated to Scattered showers north Thursday with frontal passage. Then dry into early next week.

SHORT TERM /Through Thursday Night/

High clouds will continue to increase through the afternoon, as a low moves eastward across northern Nevada (currently over northern California). While most of the area area will remain dry overnight, portions of southwestern Idaho near the Nevada border will get into the wrap around portion of the low, with isolated to scattered showers. Snow levels will be around 6-7kft MSL, although little if any accumulation is anticipated in regard to both liquid and frozen precipitation. Temperatures this afternoon will warm to be around 60 degrees in lower elevations, and 50s in the Oregon high desert and mountain valleys. Breezy west/southwest winds will also set in, strongest in the typical windy portions of the Snake River Plain with gusts to 20-30 mph. Gusts will taper off this evening with light winds overnight.

A brief period of ridging will bring clearing skies and lighter winds Wednesday, with high temperatures similar to that of today if not a degree or two warmer. This ridge will be short-lived, however as a short-wave and it's associated cold front will break it down and cross over our area Thursday. This will allow for slightly cooler temperatures (although seasonable for the time of year). While moisture looks to be rather limited with this front, it will serve as the focus for increased precipitation chances, 20-40% chance mainly in our northern zones, as it passes through from west to north. Precipitation chances will taper off quickly behind the front with northwest winds of 5-10 mph with gusts up to 20 mph in open terrain.

LONG TERM /Friday through Tuesday/

Troughing moving onto the coast of British Columbia on Friday, paired with a building ridge over California, will shunt the majority of tropical moisture coming in on an atmospheric river to the north. This flow will keep our area dry throughout much of the period. Periodic short-waves will work to break down the ridge beginning early next week, but with much of the moisture wrung out in the Cascades, the only tangible evidence would be increased mid-high cloud cover. Uncertainty in pattern evolution increases come Tuesday, although cluster analysis favors the pattern persisting.

AVIATION /18Z Tuesday through Wednesday/

Issued 1138 AM MST TUE NOV 3 2026

VFR under mid to high clouds. Isolated to scattered showers developing tonight near the Idaho/Nevada border. Localized MVFR possible in precip. Snow levels 6-7kft MSL. Surface winds: E-SE 5-15 kt, with gusts 20-30 kt south/east of KEUL this afternoon, becoming variable less than 10 kt this evening. Winds aloft at 10kft MSL: SE-SW 10-20 kt.

KBOI...VFR under high clouds. Surface winds: SE 7-13 kt, gusts 20-25 kt possible in the afternoon, becoming variable less than 6 kt by early evening.

BOI WATCHES/WARNINGS/ADVISORIES

ID...None.

OR...None.