Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Hazardous Weather Conditions

Heat Advisory until August 4, 09:00 PM MDT

Current conditions at

St. Johns, St. Johns Industrial Airpark (KSJN)

Lat: 34.51833°NLon: 109.37917°WElev: 5732.0ft.

Clear

79°F

26°C

Humidity	31%
Wind Speed	W 9 MPH
Barometer	30.08 in (1018.63 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	03 Aug 10:00 PM MST

More Information:

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

Extended Forecast for

5 Miles NNW St. Johns AZ

Heat Advisory August 3, 11:19pm until August 4, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory August 3, 11:19pm until August 4, 09:00pm
NOW until 9:00pm Tue
Heat Advisory
Tonight
Low: 68 °F
Mostly Clear
Tuesday
High: 100 °F
Hot
Tuesday Night
Low: 67 °F
Mostly Clear
Wednesday
High: 98 °F
Hot
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 98 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 65 °F
Slight Chance
T-storms then
Partly Cloudy
Friday
High: 98 °F
Hot

Detailed Forecast

Tonight

Mostly clear, with a low around 68. Southwest wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.

Tuesday

Sunny and hot, with a high near 100. Light west wind becoming northwest 8 to 13 mph in the morning.

Tuesday Night

Mostly clear, with a low around 67. West wind 5 to 14 mph becoming southwest in the evening. Winds could gust as high as 23 mph.

Wednesday

Sunny and hot, with a high near 98. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

Wednesday Night

Partly cloudy, with a low around 66. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

Thursday

A 10 percent chance of showers and thunderstorms after noon. Sunny and hot, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph.

Thursday Night

A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

Friday

Sunny and hot, with a high near 98. Calm wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 15 mph.

Friday Night

Mostly clear, with a low around 63. Southwest wind 13 to 18 mph becoming south 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

Saturday

Sunny and hot, with a high near 97. Light and variable wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.

Saturday Night

A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. South wind 5 to 11 mph, with gusts as high as 16 mph.

Sunday

A 10 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97. Light and variable wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Southwest wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 23 mph.

Monday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Light and variable wind becoming west 12 to 17 mph in the morning. Winds could gust as high as 25 mph.