Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
201 AM MDT Fri Aug 21 2026

IDZ052-053-058-059-220400-
/O.CON.KPIH.HT.Y.0007.260821T1800Z-260822T0400Z/
Arco/Mud Lake Desert-Upper Snake River Plain-Marsh and Arbon
Highlands-Franklin/Eastern Oneida Region-
Including the cities of Thatcher, Preston, Rexburg, Lava Hot
Springs, Idaho Falls, Downey, INL, St. Anthony, Mud Lake, Craters
of the Moon NM, Inkom, Malad, and McCammon
201 AM MDT Fri Aug 21 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS
EVENING...

* WHAT...Temperatures up to 95 expected.

* WHERE...Arco/Mud Lake Desert, Franklin/Eastern Oneida Region, Marsh
  and Arbon Highlands, and Upper Snake River Plain.

* WHEN...From noon today to 10 PM MDT this evening.

* IMPACTS...Hot temperatures may cause heat illnesses, including
  heatstroke and heat exhaustion.

$$

Visit weather.gov/pocatello for more information.

Messick

URGENT - WEATHER MESSAGE
National Weather Service Pocatello ID
201 AM MDT Fri Aug 21 2026

IDZ061-062-064-065-067-220400-
/O.EXA.KPIH.HT.Y.0007.260821T1800Z-260822T0400Z/
Bear Lake Valley-Blackfoot Mountains-Big Hole Mountains-Teton
Valley-Beaverhead - Lemhi Highlands-
Including the cities of Montpelier, Edie School, Soda Springs,
Georgetown, Driggs, Dubois, Bone, Spencer, St. Charles, Ashton,
Small, Grace, Victor, Tetonia, and Henry
201 AM MDT Fri Aug 21 2026

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 10 PM MDT THIS
EVENING...

* WHAT...Temperatures up to 95 expected.

* WHERE...Beaverhead - Lemhi Highlands, Big Hole Mountains, Teton
  Valley, Bear Lake Valley, and Blackfoot Mountains.

* WHEN...From noon today to 10 PM MDT this evening.

* IMPACTS...Hot temperatures may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

$$