Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

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

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

Clear

25°F

-4°C

Humidity 68%
Wind Speed N 3 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 19 Jan 07:35 AM MST
Extended Forecast for

St. Johns AZ

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 55. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 20. West wind around 6 mph becoming calm  in the evening.

    Low: 20 °F

    Mostly Clear

  • Tuesday

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

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 17. West wind around 5 mph becoming calm  in the evening.

    Low: 17 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. Southwest wind around 5 mph becoming calm  after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 58. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 58 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27. Southwest wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 11am.  Partly sunny, with a high near 55. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 55 °F

    Slight Chance
    Showers

Detailed Forecast

M.L.King Day
Mostly sunny, with a high near 55. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Tonight
Mostly clear, with a low around 20. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 52. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 17. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 56. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 21. Southwest wind around 5 mph becoming calm after midnight.
Thursday
Partly sunny, with a high near 58. Calm wind becoming west 5 to 9 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 27. Southwest wind 5 to 9 mph becoming light and variable after midnight.
Friday
A 20 percent chance of showers after 11am. Partly sunny, with a high near 55. Light and variable wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
A chance of rain showers before 4am, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday
A chance of rain and snow showers. Mostly sunny, with a high near 51. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 24. West wind 5 to 9 mph becoming light southwest after midnight. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 51. Calm wind becoming northwest 5 to 7 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)
3:52 am MST Jan 19, 2026
7am MST Jan 19, 2026-6pm MST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database