This afternoon will be partly cloudy because a disturbance to our north. It will also be a bit breezy with a southwest surface wind between 10-20 mph. Despite the clouds it will be mild with an expected high of 57 today in Twin Falls. The average high on this day is 51 degrees.
Another weak disturbance will keep some cloud coverage around tomorrow but I think it will be partly to mostly sunny overall. It will be even more mild tomorrow with an expected high of 61 in Twin Falls.
Skies will clear into Tuesday night and Wednesday is when the weather really starts to get nice. Skies will be mostly sunny and wind will be light. We expect a high of 67 in Twin and Hailey will even hit a high of about 56 degrees. Here's a look at what a model is showing for Wednesday at 5 p.m. I know this is a bit hard to read but the overall picture is the yellow (60s) and even orange (70s) shading through the valley:
Thursday will be the nicest weather day of the week. An upper level ridge axis will swing by and really get the SW flow cranking in the upper levels of the atmosphere. Here is another look at a model showing temperatures real close to 20 C (70 degrees) at 5 p.m.
It looks like we will hit the 70 degree mark in Twin Falls on Thursday and If we do it will be the first time since November 7th.
Friday will be another nice day as highs will be in the upper 60s. However, an area of low pressure in the Gulf of Alaska will start to get closer to us on Friday and will most likely affect our weather on Saturday. The EURO model is showing this for Saturday around noon:
Although that system is expected to be well to our north some energy from it could possibly put chances for rain in our Saturday and Sunday forecast. Chances for rain are slim at this point but they are worth mentioning. That system will also usher in cooler air as highs will be in the low 60s Saturday and back in the upper 50s on Sunday.
Looks like outdoor St. Patrick's Day plans will still be in if you don't mind 50 degree weather and the occasional rain drop or two.
Meteorologist, Nick Kosir