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

Gem Valley (ITDC3)

Lat: 42.64943°NLon: 111.82603°WElev: 5523.0ft.

85°F

29°C

Humidity	15%
Wind Speed	N 11 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	1.24 mi
Heat Index	82°F (28°C)
Last update	19 Aug 06:15 PM MDT

More Information:

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

Extended Forecast for

10 Miles WSW Downey ID

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

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 60 °F
Mostly Clear
Thursday
High: 81 °F
Mostly Sunny
Thursday Night
Low: 63 °F
Decreasing
Clouds
Friday
High: 82 °F
Mostly Sunny
Friday Night
Low: 65 °F
Mostly Cloudy
then Chance
Showers
Saturday
High: 74 °F
Mostly Cloudy
then Chance
T-storms
Saturday Night
Low: 60 °F
Chance
Showers then
Mostly Cloudy
Sunday
High: 73 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 58 °F
Slight Chance
T-storms then
Mostly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 60. Northwest wind 5 to 9 mph becoming southeast after midnight.

Thursday

Mostly sunny, with a high near 81. Southeast wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 63. West southwest wind 6 to 8 mph becoming east northeast after midnight.

Friday

Mostly sunny, with a high near 82. Northeast wind 6 to 11 mph becoming south southwest in the afternoon.

Friday Night

A 40 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 65. South wind 11 to 14 mph, with gusts as high as 23 mph.

Saturday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 74.

Saturday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.

Sunday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.

Monday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.

Monday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.