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

Rexburg, Rexburg-Madison County Airport (KRXE)

Lat: 43.83167°NLon: 111.80611°WElev: 4859.0ft.

Clear

58°F

14°C

Humidity	66%
Wind Speed	NE 3 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	47°F (8°C)
Visibility	10.00 mi
Last update	20 Aug 01:53 AM MDT

More Information:

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

Extended Forecast for

3 Miles ENE St. Anthony ID

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

Click here for hazard details and duration

Heat Advisory

Overnight
Low: 50 °F
Mostly Clear
Thursday
High: 92 °F
Sunny
Thursday Night
Low: 55 °F
Partly Cloudy
Friday
High: 95 °F
Increasing
Clouds
Friday Night
Low: 58 °F
Mostly Cloudy
Saturday
High: 88 °F
Mostly Cloudy
then Chance
T-storms
Saturday Night
Low: 52 °F
Chance
T-storms then
Mostly Cloudy
Sunday
High: 84 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 49 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 50. East northeast wind around 7 mph.

Thursday

Sunny, with a high near 92. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 55. West southwest wind 5 to 8 mph becoming east in the evening.

Friday

Increasing clouds, with a high near 95. East northeast wind 5 to 7 mph becoming light and variable.

Friday Night

Mostly cloudy, with a low around 58. East wind 5 to 9 mph.

Saturday

A chance of rain between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.

Saturday Night

A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

Sunday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.

Sunday Night

Partly cloudy, with a low around 49.

Monday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.

Monday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48.

Tuesday

Mostly sunny, with a high near 83.

Tuesday Night

Mostly cloudy, with a low around 49.