textproduct: Boise

UPDATE

Updated aviation discussion.

KEY MESSAGES

- Near to slightly above normal temperatures through the week.

- Scattered showers across the north on Thursday.

- Above normal temperatures and dry over the weekend into early next week.

SHORT TERM /Through Friday Night/

Issued 215 AM MST WED NOV 4 2026 The pattern will remain progressive during the short term but overall remain quiet. An upper low over northern Nevada early this morning will move east today as a shortwave ridge builds overhead. Skies will clear this morning with lighter winds and highs near to slightly above normal. Clouds will increase tonight ahead of a weak upper level trough moving through on Thursday. A 10-30% chance of showers will develop across the north with minimal precipitation amounts expected. A dusting of snow is possible above 4500-6000 feet. This system will cool temperatures a few degrees and bring an uptick in wind Thursday afternoon. A ridge of high pressure will build on Friday bringing slight warming and periods of high clouds. Otherwise, winds will be light with no precipitation expected. Patchy fog will develop each night this week in sheltered basins.

LONG TERM /Saturday through Wednesday/

Issued 215 AM MST WED NOV 4 2026 The pattern through the extended will feature a broad upper level ridge extending across the central CONUS while a deep trough becomes established off the Pacific Northwest coast. The ridge and southwesterly flow aloft through the period will push temperatures to around 10 degrees above normal, with valley highs generally reaching the 60s. Breezy southeast winds will develop over the weekend as a system clips the Pacific Northwest. However, precipitation will remain north of our area with only periods of high clouds. Dry conditions will persist into early next week, but a 10-30% chance of precipitation and breezy conditions will return on Wednesday as a strong system approaches the coast.

AVIATION /12Z Wednesday through Thursday/

Issued 452 AM MST WED NOV 4 2026 VFR under decreasing mid to high clouds with mostly clear skies this afternoon. Patchy fog this morning near KBKE/KBNO with lower potential near KMYL. Mid to high clouds increasing tonight. Surface winds: SW-NW 5-10 kt, becoming variable less than 10 kt this evening. Winds aloft at 10kft MSL: N-NW 5-15 kt, becoming W-SW 5-15 kt after Thu/03Z.

KBOI...VFR. Surface winds: variable less than 6 kt this morning, becoming NW 5-10 kt this afternoon and SE 4-8 kt tonight.

BOI WATCHES/WARNINGS/ADVISORIES

ID...None.

OR...None.