Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Hazardous Weather Conditions

Flood Watch 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.

Partly Cloudy

64°F

18°C

Humidity	72%
Wind Speed	S 6 MPH
Barometer	30.18 in (1022.01 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	31 Aug 03:15 AM MST

More Information:

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

Extended Forecast for

6 Miles SSW St. Johns AZ

Flood Watch August 31, 04:41am until September 1, 01:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 31, 04:41am until September 1, 01:00am
NOW until 1:00am Tue
Flood Watch
Overnight
Low: 63 °F
Showers
Likely
Monday
High: 77 °F
Showers
Monday Night
Low: 54 °F
Chance
T-storms then
Patchy Fog
Tuesday
High: 83 °F
Mostly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 54 °F
Mostly Clear
Wednesday
High: 85 °F
Sunny
Wednesday Night
Low: 56 °F
Partly Cloudy
Thursday
High: 86 °F
Sunny then
Slight Chance
T-storms

Detailed Forecast

Overnight

Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 63. Light southwest wind. Chance of precipitation is 60%.

Monday

Showers and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. High near 77. Light and variable wind becoming northwest 5 to 8 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 80%.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 54. Northwest wind 5 to 7 mph becoming calm in the evening.

Tuesday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.

Tuesday Night

Mostly clear, with a low around 54. West wind 5 to 7 mph becoming south after midnight. Winds could gust as high as 15 mph.

Wednesday

Sunny, with a high near 85. South wind 5 to 10 mph becoming northwest in the morning. Winds could gust as high as 18 mph.

Wednesday Night

Partly cloudy, with a low around 56. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 17 mph.

Thursday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. South wind 5 to 8 mph becoming northwest in the morning. Winds could gust as high as 15 mph.

Thursday Night

A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. Southwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

Friday

A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 83. Light and variable wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 17 mph.

Friday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 5 to 8 mph becoming calm after midnight.

Saturday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 15 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 5 to 8 mph becoming light and variable. Winds could gust as high as 15 mph.

Sunday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southeast wind 6 to 10 mph, with gusts as high as 16 mph.