Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from August 21, 12:00 PM MDT until August 21, 10:00 PM MDT

Current conditions at

Idaho Falls Regional Airport (KIDA)

Lat: 43.52083°NLon: 112.06611°WElev: 4741.0ft.

Clear

84°F

29°C

Humidity	18%
Wind Speed	SE 4 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	38°F (3°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	19 Aug 08:20 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Idaho Falls ID

Heat Advisory August 21, 12:00pm until August 21, 10:00pm

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 56 °F
Mostly Clear
Thursday
High: 94 °F
Sunny
Thursday Night
Low: 61 °F
Partly Cloudy
Friday
High: 96 °F
Hot
Friday Night
Low: 63 °F
Slight Chance
T-storms
Saturday
High: 86 °F
Chance Rain
then Chance
T-storms
Saturday Night
Low: 59 °F
Chance
Showers then
Partly Cloudy
Sunday
High: 85 °F
Mostly Sunny
Sunday Night
Low: 57 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 56. South southeast wind 5 to 7 mph becoming light and variable after midnight.

Thursday

Sunny, with a high near 94. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 61. West southwest wind 5 to 7 mph becoming light and variable after midnight.

Friday

Mostly sunny and hot, with a high near 96. Light and variable wind becoming west northwest around 6 mph in the afternoon.

Friday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. North northwest wind around 7 mph becoming south after midnight.

Saturday

A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. Chance of precipitation is 30%.

Saturday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.

Sunday

Mostly sunny, with a high near 85.

Sunday Night

Partly cloudy, with a low around 57.

Monday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.

Monday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.