Weather Forecast Summary
A rare, cold Arctic blast is expected to move into the region tonight, bringing extremely cold temperatures and potentially life-threatening conditions to mountain areas. An Extreme Cold Warning has been issued for the Camas Prairie, while a Cold Weather Advisory is in effect for the rest of southeast Oregon and southwest Idaho.
Tonight, extremely cold temperatures are expected, with lows ranging from 0 to -15°F in eastern Oregon and 0 to 10°F in the Treasure and Magic Valleys. Patchy dense fog is also possible in eastern Oregon valleys during late night and early morning hours. Skies will be mostly clear, with a few light snow showers or flurries possible in the mountains.
As we head into Thursday, a Pacific storm system is likely to bring impactful snowfall to the region with 2"-5" of snow possible in the Treasure Valley between midday Thursday and midday Friday. This snow could cause slick roads for the Thursday EVENING and Friday MORNING commutes on I-84.
Mountain snowfall is expected to be relatively light, with 3-6 inches forecast. Additional snowfall is likely on Friday, with valleys receiving up to 0.5 inches and mountains receiving up to 2 inches.
A brief break in precipitation is expected on Saturday, followed by a weaker and warmer system on Sunday, bringing snow possibly changing to rain below 4,000 feet. Temperatures will gradually moderate, reaching 5-10 degrees below normal by the weekend.
Detailed Forecast:
Tonight
- Mostly cloudy, with a low around 8
- West northwest wind 5 to 7 mph becoming calm in the evening
Tuesday
- Mostly sunny, with a high near 28
- Wind becoming west northwest 6-12 mph in the afternoon creating very cold wind chill factors in the low teens!
Tuesday Night
- Mostly clear, with a low around 3
- West northwest wind 5 to 9 mph becoming calm in the evening
Wednesday
- Sunny, with a high near 26
- Calm wind
Wednesday Night
- Mostly clear, with a low around 10
- Calm wind becoming east around 5 mph in the evening
Thursday
- Snow likely after 11am
- Mostly cloudy, with a high near 36
- Chance of precipitation is 70%
- New snow accumulation of 1"-2" possible
Thursday Night
- Snow, mainly before 11pm
- Low around 25
- Chance of precipitation is 80%
- New snow accumulation of around 1"-3" inches possible
Friday
- Snow likely before 2pm, then a chance of rain and snow
- Cloudy, with a high near 39
- Chance of precipitation is 60%
Saturday
- Partly sunny, with a high near 39
Saturday Night
- A chance of snow
- Mostly cloudy, with a low around 27
- Chance of precipitation is 40%
Sunday
- snow mixing with rain likely
- Cloudy, with a high near 41
- Chance of precipitation is 70%
Stay connected right here for updates on our winter cold and late-week snow!
