Southern Idaho Weather Forecast
CHIEF METEOROLOGIST ERIC BRILL – EVENING UPDATE
Wednesday, July 29, 2020
A heat advisory has been issued for all of Cassia, Minidoka and Lincoln Counties, as well as Southeastern Blaine Counties for Thursday and/or Friday. What it comes down to is that temperatures are going to have the ability to be in the upper 90s to lower triple digits on both of these given days. This looks to be the case for a lot of the Magic Valley as well. Try to avoid being outside during the heat of the day (which is approximately 2 PM until 8 PM), make sure to take frequent breaks, drink plenty of water, and check up on the kids and elderly. While this heat isn’t the most uncommon thing for Southern Idaho to see, it doesn’t mean that it won’t be hot!
As an area of high pressure really starts to develop, hot weather conditions and plenty of sunshine are going to be within the forecast for the next few days.
The hottest day looks to be Friday, but Thursday won’t be far behind that. Temperatures to end the month of July are going to be on either side of 100° for afternoon highs within the Magic Valley and Mini-Cassia Region for both days. Not to be outdone, the Wood River Valley will be climbing into the lower to middle 90s for both Thursday and Friday. Both of these days will very likely be the hottest days so far in 2020, and potentially the hottest days since July of 2019.
A very weak disturbance is going to knock temperatures back a few degrees from Friday to Saturday, but above average temperatures will continue to be within the forecast. Middle 90s are expected for both weekend days, and even Monday, for the Mini-Cassia Region and Magic Valley, while the Wood River Valley will likely top-off in the lower 90s.
It won’t be until Tuesday when some possible relief will be on the way. A cold front looks to move through Southern Idaho, and allow temperatures to fall slightly below average. Even then, it doesn’t look like the ‘not as hot’ of temperatures will last all that long, as the middle and end of next week appear to be warming back up.
As far as the chance of showers and storms go, there isn’t much there over the next week. Slight chances of showers and storms are possible for the Wood River Valley on Thursday evening, but it won’t be much at all.
From a wind standpoint, breezy weather is expected for Monday (meaning sustained winds in the 10-20 mph range), while a little bit of a breeze is expected for Thursday, Friday, Tuesday and Wednesday.
As a whole, the big story over the next week is going to be the incoming heat. Besides that (and that is a big deal, to be clear!), there isn’t all that much going on in the world o weather in Southern Idaho. Keep cool, and stay safe!
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WEDNESDAY NIGHT (July 29, 2020)
MAGIC VALLEY: Clear skies. Low: 61. Winds: East 5-15 mph.
WOOD RIVER VALLEY: Clear skies. Low: 56. Winds: Northeast 5-15 mph.
THURSDAY (July 30th)
MAGIC VALLEY: Mostly sunny skies and hotter. High: 99. Winds: East 5-15 mph.
WOOD RIVER VALLEY: Mostly sunny skies with a slight chance of a rain shower and/or a thunderstorm, generally during the afternoon and evening. High: 90. Winds: East 5-15 mph.
MAGIC VALLEY: Decreasing clouds through the night. Low: 64. Winds: East 5-15 mph.
WOOD RIVER VALLEY: Decreasing clouds through the night. Low: 60. Winds: Northeast 5-10 mph.
FRIDAY (July 31st)
MAGIC VALLEY: Mainly sunny skies, hot and a little bit breezy. High: 100. Low: 67.
WOOD RIVER VALLEY: Mainly sunny skies and hot. High: 93. Low: 61.
SATURDAY (August 1st)
MAGIC VALLEY: Partly cloudy skies and hot. High: 97. Low: 65.
WOOD RIVER VALLEY: Partly cloudy skies and hot. High: 92. Low: 59.
SUNDAY (August 2nd)
MAGIC VALLEY: Mostly sunny skies and hot. High: 96. Low: 64.
WOOD RIVER VALLEY: Mainly sunny skies and hot. High: 92. Low: 58.
MONDAY (August 3rd)
MAGIC VALLEY: Sunny skies and breezy. High: 95. Low: 63.
WOOD RIVER VALLEY: Sunny skies. High: 90. Low: 55.
TUESDAY (August 4th)
MAGIC VALLEY: Mostly sunny skies and a little bit breezy. High: 87. Low: 59.
WOOD RIVER VALLEY: Sunny skies. High: 84. Low: 52.
WEDNESDAY (August 5th)
MAGIC VALLEY: Mainly sunny skies and a little bit breezy. High: 86.
WOOD RIVER VALLEY: Mainly sunny skies. High: 84.
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