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

Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

Current conditions at

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

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

Clear

72°F

22°C

Humidity 10%
Wind Speed SE 3 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 03 Jul 08:35 AM MST
Extended Forecast for

St. Johns AZ

  • Today

    Today: Sunny, with a high near 95. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. West wind 11 to 16 mph becoming light and variable. Winds could gust as high as 25 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Independence Day

    Independence Day: Partly sunny, with a high near 94. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 94 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of thunderstorms after noon. Mostly cloudy, with a high near 93. Southwest wind 6 to 11 mph becoming northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 10%.

    High: 93 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. Southwest wind 8 to 13 mph becoming light south after midnight. Winds could gust as high as 24 mph.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 95. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 95. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 95. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.
Tonight
Increasing clouds, with a low around 58. West wind 11 to 16 mph becoming light and variable. Winds could gust as high as 25 mph.
Independence Day
Partly sunny, with a high near 94. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 63. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday
A slight chance of thunderstorms after noon. Mostly cloudy, with a high near 93. Southwest wind 6 to 11 mph becoming northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 10%.
Sunday Night
Partly cloudy, with a low around 62. Southwest wind 8 to 13 mph becoming light south after midnight. Winds could gust as high as 24 mph.
Monday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 95. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 64. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 95. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 66. Southwest wind 8 to 13 mph becoming light south after midnight. Winds could gust as high as 21 mph.
Wednesday
Sunny and hot, with a high near 96. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 66. Southwest wind 7 to 16 mph, with gusts as high as 25 mph.
Thursday
Sunny and hot, with a high near 96. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
Last Update:
4:56 am MDT Jul 3, 2026
Forecast Valid:
9am MDT Jul 3, 2026-6pm MDT Jul 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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