Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

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

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

Clear

48°F

9°C

Humidity 23%
Wind Speed NW 9 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 29 Jan 01:54 PM MST
Extended Forecast for

St. Johns AZ

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. Northwest wind around 6 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 18. West wind around 5 mph becoming calm  in the evening.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 20. Light and variable wind.

    Low: 20 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 21. Light and variable wind.

    Low: 21 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 61. Calm wind becoming north around 5 mph in the afternoon.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. South wind around 5 mph becoming calm  after midnight.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 18. West wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Clear, with a low around 20. Light and variable wind.
Saturday
Sunny, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 21. Light and variable wind.
Sunday
Sunny, with a high near 61. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 26. South wind around 5 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 60. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 27. Southwest wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 57. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 22. Northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 55. Calm wind becoming north 5 to 9 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
1:08 pm MST Jan 29, 2026
2pm MST Jan 29, 2026-6pm MST Feb 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database