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Southern Idaho Weather Forecast

Published: Mar. 17, 2021 at 8:10 AM MDT|Updated: Sep. 10, 2021 at 5:09 PM MDT
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METEOROLOGIST NICHOLAS SNIDER – EVENING UPDATE

Sunday, September 12, 2021

Another pleasant day of weather for most of the KMVT viewing area…. except for the South Hills. Showers and thunderstorms are impacting portions of southern Cassia County. These are expected to continue throughout much of the afternoon. Tomorrow, these should begin clearing out, as dryer air works in. However, breezy conditions over the entire viewing area will look to develop. Some coller conditions are expected however as a weak front will push through the area tonight. The jet stream will lift back north of the area on Tuesday, calming the winds down but warming temperatures up once again. Northwesterly flow aloft will keep smoke away from the viewing area. As a weak dip in the jet stream comes into the forecast area on Wednesday. These breezy conditions will continue through the end of the week. On Thursday, southwesterly flow will come into the forecast area allowing smoke to return to the area, and last through the end of the weekend. Things change on Sunday, when an area of low pressure associated with a stronger dip in the jet stream comes in, allowing for a cold front to pass through, and clear smoke out of the area. Rain should form on the other side of this front as well. Temperatures will be feeling very fall-like as well on Sunday.

For the latest on all warnings and advisories in Southern Idaho click here

Connect with me on social media: Facebook: Nicholas Snider Twitter: @snider_wx Instagram: @snider_wx

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SUNDAY NIGHT (September 12, 2021)

MAGIC VALLEY: Clouds clearing throughout the night South hills rain clearing as well. Lows in the middle and upper 50s. Winds: WSW 10-15 mph.

WOOD RIVER VALLEY: Clouds clearing throughout the night. Lows in the upper 40s and lower 50s. Winds: N 5-10 mph.

MONDAY (September 13th)

MAGIC VALLEY: Partly sunny skies with breezy conditions in the afternoon. Highs in the middle and upper 70s. Winds: NW 10-15 mph.

WOOD RIVER VALLEY: Partly sunny in the morning, partly cloudy with breezy conditions in the afternoon. Highs in the lower and middle 70s. Winds: WNW 15-20 mph.

MONDAY NIGHT:

MAGIC VALLEY: Partly cloudy skies. Breezy conditions in the evening. Lows in the lower and middle 50s. Winds: WSW 10-15 mph.

WOOD RIVER VALLEY: Partly cloudy skies, breezy conditions in the evening. Lows in the upper 30s and lower 40s. Winds: NNE 5-10 mph.

TUESDAY (September 14th)

MAGIC VALLEY: Mostly sunny. Highs in the upper 70s and lower 80s. Lows in the middle and upper 50s.

WOOD RIVER VALLEY: Partly sunny. Highs in the lower and middle 70s. Lows in the lower and middle 40s.

WEDNESDAY (September 15th)

MAGIC VALLEY: Mostly sunny and breezy in the afternoon. Highs in the middle and upper 70s. Lows in the lower and middle 50s.

WOOD RIVER VALLEY: Partly sunny and breezy in the afternoon. Highs in the upper 60s and lower 70s. Lows in the middle and upper 40s.

THURSDAY (September 16th)

MAGIC VALLEY: Mostly sunny with smoke returning and breezy conditions in the afternoon. Highs in the middle and upper 70s. Lows in the lower and middle 50s.

WOOD RIVER VALLEY: Partly sunny with smoke returning and breezy afternoon conditions. Highs in the lower and middle 70s. Lows in the lower and middle 40s.

FRIDAY (September 17th)

MAGIC VALLEY: Mostly cloudy and smoky with breezy conditions in the afternoon. Highs in the middle and upper 70s. Lows in the middle and upper 50s.

WOOD RIVER VALLEY: Mostly cloudy and smoky with breezy conditions in the afternoon. Highs in the upper 60s and lower 70s. Lows in the lower and middle 40s.

SATURDAY (September 18th)

MAGIC VALLEY: Partly sunny with smoke and breezy conditions in the afternoon. Highs in the middle and upper 70s. Lows in the upper 40s and lower 50s.

WOOD RIVER VALLEY: Partly sunny with smoke and breezy conditions in the afternoon. Highs in the upper 60s and lower 70s. Lows in the upper 30s and lower 40s.

SUNDAY (September 19th)

MAGIC VALLEY: Mostly cloudy with morning showers and breezy conditions. Highs in the upper 50s and lower 60s.

WOOD RIVER VALLEY: Mostly cloudy with morning showers and breezy conditions. Highs in the upper 40s and lower 50s.

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