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

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

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

Clear

28°C

82°F

Humidity 24%
Wind Speed WSW 13 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 6°C (43°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 13 Jul 08:00 AM MST
Extended Forecast for

St. Johns AZ

  • Today

    Today: A 10 percent chance of showers and thunderstorms after noon. Increasing clouds and hot, with a high near 37. West wind 13 to 18 km/h becoming northwest in the afternoon. Winds could gust as high as 32 km/h.

    High: 37 °C

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Widespread haze between 11pm and 5am. Mostly cloudy, with a low around 18. Southeast wind 19 to 24 km/h becoming southeast 10 to 15 km/h in the evening. Winds could gust as high as 40 km/h. Chance of precipitation is 30%.

    Low: 18 °C

    Chance
    Showers then
    Haze

  • Monday

    Monday: A chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Widespread haze before 7am. Mostly sunny, with a high near 35. Southeast wind 8 to 16 km/h becoming northwest in the morning. Winds could gust as high as 27 km/h. Chance of precipitation is 30%.

    High: 35 °C

    Haze then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 18. Northeast wind 13 to 23 km/h becoming south after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 30%.

    Low: 18 °C

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Mostly sunny, with a high near 34. South wind 13 to 23 km/h becoming west in the morning. Winds could gust as high as 37 km/h. Chance of precipitation is 20%.

    High: 34 °C

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 18. Southwest wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 30%.

    Low: 18 °C

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 33. Northwest wind 11 to 16 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 39 km/h.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 17. Southwest wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 39 km/h.

    Low: 17 °C

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 31. South wind 8 to 13 km/h becoming northwest in the afternoon.

    High: 31 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after noon. Increasing clouds and hot, with a high near 37. West wind 13 to 18 km/h becoming northwest in the afternoon. Winds could gust as high as 32 km/h.
Tonight
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Widespread haze between 11pm and 5am. Mostly cloudy, with a low around 18. Southeast wind 19 to 24 km/h becoming southeast 10 to 15 km/h in the evening. Winds could gust as high as 40 km/h. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Widespread haze before 7am. Mostly sunny, with a high near 35. Southeast wind 8 to 16 km/h becoming northwest in the morning. Winds could gust as high as 27 km/h. Chance of precipitation is 30%.
Monday Night
A slight chance of thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 18. Northeast wind 13 to 23 km/h becoming south after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of thunderstorms after 3pm. Mostly sunny, with a high near 34. South wind 13 to 23 km/h becoming west in the morning. Winds could gust as high as 37 km/h. Chance of precipitation is 20%.
Tuesday Night
A slight chance of thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 18. Southwest wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 39 km/h. Chance of precipitation is 30%.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 33. Northwest wind 11 to 16 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 39 km/h.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 17. Southwest wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 39 km/h.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 31. South wind 8 to 13 km/h becoming northwest in the afternoon.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 17. West wind 5 to 11 km/h becoming southeast after midnight. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 31. Southeast wind 5 to 10 km/h becoming southwest 13 to 18 km/h in the afternoon. Winds could gust as high as 34 km/h.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 17. Southwest wind 13 to 18 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 32 km/h.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32. South wind 5 to 14 km/h becoming west in the morning. Winds could gust as high as 26 km/h.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 m)
Last Update:
4:10 am MDT Jul 13, 2025
Forecast Valid:
9am MDT Jul 13, 2025-6pm MDT Jul 19, 2025
 
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Additional Resources

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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