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 20, 12:00 PM MDT until August 21, 09:00 PM MDT

Current conditions at

Boise Air Terminal (KBOI)

Lat: 43.56704°NLon: 116.24053°WElev: 2822.0ft.

Clear

73°F

23°C

Humidity	25%
Wind Speed	SE 8 MPH
Barometer	29.93 in (1013.55 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Last update	20 Aug 03:05 AM MDT

More Information:

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

Extended Forecast for

4 Miles ESE Kuna ID

Heat Advisory August 20, 12:00pm until August 21, 09:00pm

Click here for hazard details and duration

Heat Advisory

Overnight
Low: 61 °F
Mostly Clear
Thursday
High: 98 °F
Hot
Thursday Night
Low: 65 °F
Mostly Cloudy
Friday
High: 100 °F
Patchy Smoke
then Mostly
Cloudy
Friday Night
Low: 68 °F
Mostly Cloudy
Saturday
High: 94 °F
Slight Chance
T-storms
Saturday Night
Low: 61 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 88 °F
Sunny
Sunday Night
Low: 58 °F
Mostly Clear

Detailed Forecast

Overnight

Mostly clear, with a low around 61. Calm wind.

Thursday

Increasing clouds and hot, with a high near 98. Light and variable wind becoming north northwest 5 to 9 mph in the afternoon.

Thursday Night

Mostly cloudy, with a low around 65. North northwest wind 5 to 9 mph becoming calm after midnight.

Friday

Patchy smoke between 7am and 11am. Partly sunny and hot, with a high near 100. Light and variable wind becoming west northwest 5 to 7 mph in the morning.

Friday Night

Mostly cloudy, with a low around 68. Northwest wind 9 to 13 mph becoming south southeast after midnight.

Saturday

A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 94.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.

Sunday

Sunny, with a high near 88.

Sunday Night

Mostly clear, with a low around 58.

Monday

Mostly sunny and hot, with a high near 90.