textproduct: Boise
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Isolated thunderstorms south of Twin Falls this afternoon and Friday afternoon.
- Gusty winds through Baker City to Ontario corridor each evening.
- Dry through the weekend, with a chance of thunderstorms returning Monday area wide. - Steady warming trend into the weekend, with the hottest temperatures expected Sunday through Wednesday.
SHORT TERM /Through Saturday Night/
A ridge will continue to build into the region with a warming and drying trend, with southwest flow aloft. Isolated thunderstorms possible along the NV border on Friday afternoon. Southwest flow aloft will bring gusty southwest winds during the afternoons on the ridgetops. Pressure gradients between the Columbia Basin and Snake Basin will develop each evening and bring breezy north-northwest winds along the I-84 corridor between Baker City and Ontario. Wind gusts up to 35-45 mph possible in these areas.
LONG TERM /Sunday through Thursday/
Heat will stick around throughout the long-term period as a result of a building high pressure aloft over the Four Corners region. Valley temperatures will be in the mid to upper-90s throughout the week next week (5-10 degrees above normal). A low off of the Alaskan Panhandle will keep our area under southwest flow aloft keeping the hottest temperatures to our south. A push of monsoonal moisture will give way to risk of thunderstorms beginning Monday through Wednesday. A shortwave Monday will also help enhance thunderstorm development Monday afternoon, details should become better resolved in the forecasts to come.
AVIATION /18Z Thursday through Friday/
Issued 1133 AM MDT THU JUL 2 2026
VFR. Isolated thunderstorms this afternoon near the ID/NV border and east of KTWF/KJER. Surface winds: SW-NW 7-12 kt this afternoon, then light and variable overnight. Winds aloft at 10kft MSL: W-SW 5-15 kt.
KBOI...VFR under mostly clear skies. Surface winds: NW 7-12 kt, with occasional gusts around 18 kt this afternoon. Then light and variable overnight.
Weekend Outlook...VFR with dry conditions and intermittent clouds. Surface winds W-NW 5-15 kt Sat/Sun afternoons, light and variable overnights.
BOI WATCHES/WARNINGS/ADVISORIES
ID...None.
OR...None.
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