Overnight, steady rain with embedded thunderstorms tracked across the Treasure Valley and west-central mountains. So far, the heaviest rainfall stretched from the Owyhee Mountains through Boise and the Boise Mountains, where one-inch+ rain totals were common.
Throughout the weekend, Idaho will be positioned on the backside of the weather maker. This pattern keeps a 20–40% chance of showers in the mountains of Baker County and southwest Idaho, while the valleys stay mostly dry. Snow levels are expected to drop to around 6,000–7,500 feet by Sunday, although accumulation is expected to be minimal.
Gusty northwest winds will also kick up late Friday night into Saturday, reaching 15–30 mph across open terrain mainly east of Boise, and stronger gusts near 40–45 mph along parts of the Snake River. Temperatures will stay cool, averaging 5–10° below normal.
The start of next week will be quieter, with northerly flow bringing drier air and gradual warming bringing in quite pleasant afternoon conditions.
Here is my Treasure Valley forecast:
Tonight
Mostly cloudy, then gradually becoming mostly clear & chilly, with a low around 47. NW wind 5 to 8 mph.
Saturday
Mostly cloudy, then gradually becoming sunny but blustery & cool, with a high near 64. NW wind 8-16 mph, with gusts as high as 30 mph.
Saturday Night
Patchy fog after 3am. Otherwise, mostly clear & very chilly, with a low around 42. Diminishing NW wind.
Sunday
Areas of fog before 9am. Otherwise, sunny with a nice afternoon and a high near 65. Lighter NW breeze.
Sunday Night
Mostly clear & chilly, with a low around 43.
Monday
Sunny & milder, with a high near 65.
Monday Night
Clear, with a low around 43.
Tuesday
Sunny & milder, with a high near 70.
Tuesday Night
Clear, with a low around 46.
Wednesday
Sunny & pleasant, with a high near 73.
Thursday
Sunny & pleasant, with a high near 74.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 49.
Friday
A slight chance of showers. Mostly sunny, with a high near 73.
Stay connected right here for updates to my extended forecast and you can check out my ScottScore forecast on my Facebook Page.
