National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

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

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

Clear

83°F

28°C

Humidity 14%
Wind Speed W 18 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Jun 07:54 PM MST
Extended Forecast for

St. Johns AZ

  • Tonight

    Tonight: Mostly clear, with a low around 63. Southwest wind 11 to 16 mph, with gusts as high as 23 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Breezy, with a west wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 95 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62. Southwest wind 13 to 21 mph, with gusts as high as 33 mph.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 93. West wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. Southwest wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 61 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 92. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 15 to 20 mph becoming light southwest after midnight. Winds could gust as high as 30 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Breezy, with a light and variable wind becoming west 17 to 22 mph in the morning. Winds could gust as high as 33 mph.

    High: 91 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 53. West wind 16 to 21 mph becoming light south after midnight. Winds could gust as high as 32 mph.

    Low: 53 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Southwest wind 11 to 16 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 95. Breezy, with a west wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.
Wednesday Night
Partly cloudy, with a low around 62. Southwest wind 13 to 21 mph, with gusts as high as 33 mph.
Thursday
Sunny, with a high near 93. West wind 11 to 16 mph, with gusts as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 61. Southwest wind 9 to 17 mph, with gusts as high as 26 mph.
Juneteenth
Sunny, with a high near 92. Southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 57. West wind 15 to 20 mph becoming light southwest after midnight. Winds could gust as high as 30 mph.
Saturday
Sunny, with a high near 91. Breezy, with a light and variable wind becoming west 17 to 22 mph in the morning. Winds could gust as high as 33 mph.
Saturday Night
Clear, with a low around 53. West wind 16 to 21 mph becoming light south after midnight. Winds could gust as high as 32 mph.
Sunday
Sunny, with a high near 91. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Clear, with a low around 54. West wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 94. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Clear, with a low around 57. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny and hot, with a high near 96. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
Last Update:
5:26 pm MDT Jun 16, 2026
Forecast Valid:
9pm MDT Jun 16, 2026-6pm MDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation