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Southern Idaho Weather Forecast

Published: Sep. 18, 2020 at 8:59 AM MDT|Updated: Sep. 21, 2020 at 5:02 PM MDT
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CHIEF METEOROLOGIST ERIC BRILL – EVENING UPDATE

Monday, September 21, 2020

More smoke is going to return to Southern Idaho on Tuesday, as fires from California, Oregon, Washington and Idaho continue to burn. Tuesday will likely be the smokiest day that we are going to see over the next few.

Southern Idaho hasn’t seen too much smoke around over the past few days, thanks to a cold front that swept through the area. The cold front has moved far enough away from the region that it doesn’t have quite as much of an affect on the weather in Southern Idaho, and allows other wind patterns to move in. This results in smoke that was pushed away from the area to make a re-appearance in Southern Idaho, and chances are that you noticed that more and more throughout the day on Tuesday.

Luckily, some of the smoke will start to depart the region yet again fro Wednesday and Thursday. Beyond that, a relatively strong disturbance that is currently off the West Coast of the United States will keep the air within Southern Idaho somewhat smoke free for a few days. This cold front will also knock temperatures back a bit for Friday and Saturday. Temperatures throughout the Magic Valley and Mini-Cassia Region will climb into the upper 70s and lower 80s for Tuesday, Wednesday and Thursday, but drop about 10-15° for Friday and Saturday. For the Wood River Valley, expect middle to lower 70s for the three mid-week days, but then middle and lower 60s are going to return for Friday and Saturday.

There aren’t going to be many showers that come out of this disturbance, which isn’t a good thing for the region. We’ve obviously seen a number of fires develop rather quickly over the past few weeks, and the possibility for them to still grow quickly will be there with the lack of rain expected. The Wood River Valley may be able to get a couple of showers on Thursday and Friday evening, but don’t expect anything too crazy as far as the rain is concerned. This is really going to be more of a temperature front than anything, followed by some breezy weather, and then showers.

Both Thursday and Friday are going to be breezy all around Southern Idaho, and some of those winds will likely hang around into the weekend as well. I don’t expect anything too crazy as far as the winds are concerned, but sustained winds in the 10-25 mph range will be possible for Thursday and Friday.

As far as this upcoming weekend is looking like, some awesome weather is expected! Mostly sunny to partly cloudy skies, near average temperatures and dry weather can be expected. As noted above, it could be a little bit breezy, but it doesn’t appear like it will be anything too over the top.

September has been an interesting month of weather, and it appears that the last third of the month will continue that stretch! Those real warm days that we see during the summer don’t appear to be on the way, so it appears that the dog days of summer have come to a completion!

'<a href="http://www.kmvt.com/weather/alerts/" target="_blank"><b> For the latest on all warnings and advisories in Southern Idaho click here… </b></a>

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MONDAY NIGHT (September 21, 2020)

MAGIC VALLEY: Smoky/hazy skies. Aside from that, mostly clear to partly cloudy skies. Low: 51. Winds: South 5-10 mph.

WOOD RIVER VALLEY: Smoky/hazy skies. Aside from that, mostly clear to partly cloudy skies. Low: 45. Winds: North 3-8 mph.

TUESDAY (September 22nd)

MAGIC VALLEY: Smoky skies from fires in California, Oregon, Idaho and Washington. Otherwise, partly cloudy skies. High: 78. Winds: West to Northwest 5-15 mph.

WOOD RIVER VALLEY: Smoky skies from fires in California, Idaho, Oregon and Washington. Otherwise, partly cloudy to partly sunny skies. High: 72. Winds: Southwest to West 5-15 mph.

TUESDAY NIGHT:

MAGIC VALLEY: Smoky skies from fires in California, Oregon, Idaho and Washington. Aside from that, mostly clear skies. Low: 52. Winds: South 5-10 mph.

WOOD RIVER VALLEY: Smoky skies from fires in Idaho, California, Oregon and Washington. Aside from that, mostly clear skies. Low: 44. Winds: North 5-10 mph.

WEDNESDAY (September 23rd)

MAGIC VALLEY: Partly sunny skies and a little bit hazy/smoky from various Western United States' fires. High: 81. Low: 53. WOOD RIVER VALLEY: Partly sunny skies. A little bit hazy/smoky from fires around the Western United States. High: 74. Low: 44.

THURSDAY (September 24th)

MAGIC VALLEY: Sunny skies and breezy. High: 79. Low: 50. WOOD RIVER VALLEY: Mainly sunny skies with a slight chance of an afternoon/evening rain shower and/or a thunderstorm. Breezy weather is expected as well. High: 71. Low: 42. FRIDAY (September 25th)

MAGIC VALLEY: Partly cloudy skies with a slight chance of an afternoon/evening rain shower and/or a thunderstorm. Breezy and cooler. High: 67. Low: 43. WOOD RIVER VALLEY: Mostly sunny to partly cloudy skies with a slight chance of an afternoon/evening rain shower and/or a thunderstorm. A little bit breezy and cooler. High: 62. Low: 37.

SATURDAY (September 26th)

MAGIC VALLEY: Mostly sunny skies. High: 68. Low: 48. WOOD RIVER VALLEY: Mostly sunny skies. High: 65. Low: 39.

SUNDAY (September 27th)

MAGIC VALLEY: Mostly sunny to partly cloudy skies. It will be a little bit breezy as well. High: 74. Low: 51. WOOD RIVER VALLEY: Mostly sunny to partly cloudy skies and a little bit breezy. High: 71. Low: 43.

MONDAY (September 28th)

MAGIC VALLEY: Sunny skies and pleasant. High: 80. WOOD RIVER VALLEY: Sunny skies and seasonably warm. High: 76.

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