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Current conditions at

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

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

Clear

86°F

30°C

Humidity 27%
Wind Speed NNE 5 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 19 Aug 10:35 AM MST
Extended Forecast for

St. Johns AZ

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 96. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 9pm.  Mostly cloudy, with a low around 65. Northwest wind 5 to 11 mph becoming southeast after midnight. Winds could gust as high as 21 mph.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 95. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, with a low around 64. East wind 6 to 11 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 93. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 61. Southwest wind 5 to 14 mph becoming southeast after midnight. Winds could gust as high as 23 mph.

    Low: 61 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 17 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 92. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 96. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 65. Northwest wind 5 to 11 mph becoming southeast after midnight. Winds could gust as high as 21 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 95. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 64. East wind 6 to 11 mph becoming light and variable. Winds could gust as high as 20 mph.
Friday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 93. Light and variable wind becoming southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.
Friday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 61. Southwest wind 5 to 14 mph becoming southeast after midnight. Winds could gust as high as 23 mph.
Saturday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.
Monday
A 10 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 17 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 17 mph.
Tuesday
A 10 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
11:27 am MDT Aug 19, 2026
12pm MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database