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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

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

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

Clear

39°F

4°C

Humidity 55%
Wind Speed WSW 5 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 12 Jan 05:35 PM MST
Extended Forecast for

St. Johns AZ

  • Tonight

    Tonight: Mostly clear, with a low around 15. West wind around 5 mph becoming calm in the evening.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. South wind around 6 mph becoming calm after midnight.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 54 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 20. West wind around 5 mph becoming calm after midnight.

    Low: 20 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 56. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 22. West wind 3 to 5 mph.

    Low: 22 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 53. Light and variable wind becoming northwest 5 to 7 mph in the morning.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 18. West wind around 6 mph becoming calm in the evening.

    Low: 18 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 15. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 46. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 20. South wind around 6 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 20. West wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 56. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 22. West wind 3 to 5 mph.
Friday
Sunny, with a high near 53. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Friday Night
Clear, with a low around 18. West wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 54. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 20. Light and variable wind.
Sunday
Sunny, with a high near 56. Light and variable wind.
Sunday Night
Mostly clear, with a low around 21. Calm wind.
M.L.King Day
Sunny, with a high near 57. Calm wind becoming northwest around 5 mph in the afternoon.
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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:
3:48 pm MST Jan 12, 2026
Forecast Valid:
5pm MST Jan 12, 2026-6pm MST Jan 19, 2026
 
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