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Southern Idaho Weather Forecast

Published: Jul. 20, 2020 at 7:35 AM MDT|Updated: Jul. 20, 2020 at 5:09 PM MDT
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CHIEF METEOROLOGIST ERIC BRILL – EVENING UPDATE

Monday, July 20, 2020

There is a fire weather watch, or a red flag watch, out for all of Southern Idaho for Wednesday and/or Thursday. With low humidity values, some breezy conditions, overall dry weather over the past few weeks, and the potential of lightning, any fire that is able to start will have the ability to spread easily and quickly. Let’s keep the fire danger down in Southern Idaho this season!

High pressure to the north of Southern Idaho will keep the area warm for Tuesday, but an incoming cold front is going to raise the chances of showers and storms a little bit for the middle and end of the week.

Before you get too excited hearing about a cold front, this isn’t going to drop temperatures all that much. Instead of being in the middle and lower 90s, the majority of Southern Idaho is going to fall to around 90° and the middle 80s. More or less, this is going to knock temperatures back down to near average values.

The one thing this cold front looks to do more than anything else is enhance the chance of rain. Wednesday has the highest chance of precipitation within a specific day in Southern Idaho in likely over three weeks. While the overall chance of showers is still not THAT great, even a 30% chance of showers and storms is significantly higher than that of a 0% chance. Thursday isn’t too far behind Wednesday as far as rain chances go, and it is worthwhile to note that the best chance of showers and storms for Wednesday-Sunday is going to be in the higher elevation locations. Some of those showers will sneak into the valleys, but as a whole, I really wouldn’t bank on them happening.

Drier weather will return to most of Southern Idaho for Friday-Monday, and temperatures will remain at near average values. That means that lower 90s and upper 80s can be expected in the Magic Valley and Mini-Cassia Region, while the Wood River Valley will be in the middle 80s.

Keep cool before that cold front moves through, and try to not ignite any fires for the middle and end of the week!

‘<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 (July 20, 2020)

MAGIC VALLEY: Clear skies. Low: 63. Winds: Southwest 5-15 mph.

WOOD RIVER VALLEY: Clear skies. Low: 54. Winds: North 5-10 mph.

TUESDAY (July 21st)

MAGIC VALLEY: Mainly sunny skies and hot. High: 95. Winds: West 5-10 mph.

WOOD RIVER VALLEY: Sunny skies and hot. High: 90. Winds: North 5-10 mph.

TUESDAY NIGHT:

MAGIC VALLEY: Increasing skies through the night with a slight chance of a rain shower and/or a thunderstorm. Low: 66. Winds: West 5-10 mph.

WOOD RIVER VALLEY: Developing clouds through the night. Low: 58. Winds: North 5-10 mph.

WEDNESDAY (July 22nd)

MAGIC VALLEY: Partly sunny skies with some isolated rain showers and thunderstorms during the afternoon and evening hours. High: 91. Low: 61.

WOOD RIVER VALLEY: Partly sunny skies with a chance of rain showers and thunderstorms, especially during the afternoon and evening hours. High: 86. Low: 56.

THURSDAY (July 23rd)

MAGIC VALLEY: Partly cloudy skies with some isolated rain shower and/or a thunderstorm, especially during the afternoon and evening hours. Breezy. High: 91. Low: 61.

WOOD RIVER VALLEY: Partly sunny skies with a chance of rain showers and thunderstorms, especially during the afternoon and evening hours. High: 84. Low: 53.

FRIDAY (July 24th)

MAGIC VALLEY: Partly cloudy skies with a slight chance of a PM rain shower and/or a thunderstorm. High: 89. Low: 60.

WOOD RIVER VALLEY: Partly cloudy skies with a slight chance of a PM rain shower and/or a thunderstorm. High: 83. Low: 54.

SATURDAY (July 25th)

MAGIC VALLEY: Partly cloudy skies with a slight chance of a rain shower and/or a thunderstorm, especially during the afternoon and evening hours. High: 90. Low: 61.

WOOD RIVER VALLEY: Partly cloudy skies with a slight chance of a rain shower and/or a thunderstorm, especially during the afternoon and evening hours. High: 86. Low: 54.

SUNDAY (July 26th)

MAGIC VALLEY: Mostly sunny skies. High: 91. Low: 62.

WOOD RIVER VALLEY: Mostly sunny skies with a slight chance of a PM rain shower and/or a thunderstorm. High: 86. Low: 55.

MONDAY (July 27th)

MAGIC VALLEY: Mostly sunny skies. High: 91.

WOOD RIVER VALLEY: Mostly sunny skies. High: 87.

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