Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Flood Watch in effect from August 30, 03:00 PM MDT until September 1, 01:00 AM MDT

Current conditions at

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

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

Mostly Cloudy

89°F

32°C

Humidity	22%
Wind Speed	WSW 20 MPH
Barometer	30.2 in (1022.69 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	29 Aug 12:54 PM MST

More Information:

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

Extended Forecast for

St. Johns AZ

Flood Watch August 30, 03:00pm until September 1, 01:00am

Click here for hazard details and duration

Flood Watch

This Afternoon
High: 91 °F
Chance
T-storms
Tonight
Low: 64 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 87 °F
Chance
T-storms
Sunday Night
Low: 62 °F
Chance
T-storms then
Showers
Likely
Monday
High: 80 °F
Showers
Likely
Monday Night
Low: 58 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 85 °F
Sunny
Tuesday Night
Low: 57 °F
Partly Cloudy
Wednesday
High: 87 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. West wind 9 to 13 mph becoming south. Winds could gust as high as 21 mph.

Tonight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. West wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 20 mph.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after 9am. Partly sunny, with a high near 87. South wind 5 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 62. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 16 mph. Chance of precipitation is 60%.

Monday

A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 80. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

Monday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 58. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 40%.

Tuesday

Sunny, with a high near 85. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 57. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 15 mph.

Wednesday

Mostly sunny, with a high near 87. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

Wednesday Night

Partly cloudy, with a low around 59. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 17 mph.

Thursday

A 10 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

Thursday Night

Partly cloudy, with a low around 59. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

Friday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.