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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

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

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

Clear

66°F

19°C

Humidity 15%
Wind Speed SW 24 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 12 Apr 04:35 PM MST
Extended Forecast for

St. Johns AZ

Wind Advisory April 13, 09:00am until April 13, 09:00pm
Wind Advisory April 12, 05:48pm until April 12, 09:00pm
Click here for hazard details and duration
Wind Advisory
...
  •  
    Wind Advisory April 12, 05:48pm until April 12, 09:00pm

    NOW until 9:00pm Sun

    Wind Advisory

  • Tonight

    Low: 43 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 67. Breezy, with a southwest wind 11 to 16 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 67 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 20 to 25 mph decreasing to 13 to 18 mph in the evening. Winds could gust as high as 40 mph.

    Low: 38 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Sunny, with a high near 61. Southwest wind 15 to 21 mph, with gusts as high as 32 mph.

    High: 61 °F

    Slight Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 31. West wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.

    Low: 31 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 34. Northwest wind 5 to 9 mph becoming south after midnight. Winds could gust as high as 15 mph.

    Low: 34 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 71. South wind 5 to 10 mph becoming southwest 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Breezy, with a southwest wind 19 to 24 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 38 mph.
Monday
Partly sunny, with a high near 67. Breezy, with a southwest wind 11 to 16 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 45 mph.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 38. Breezy, with a southwest wind 20 to 25 mph decreasing to 13 to 18 mph in the evening. Winds could gust as high as 40 mph.
Tuesday
A 20 percent chance of showers before noon. Sunny, with a high near 61. Southwest wind 15 to 21 mph, with gusts as high as 32 mph.
Tuesday Night
Mostly clear, with a low around 31. West wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.
Wednesday
Sunny, with a high near 66. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Clear, with a low around 34. Northwest wind 5 to 9 mph becoming south after midnight. Winds could gust as high as 15 mph.
Thursday
Mostly sunny, with a high near 71. South wind 5 to 10 mph becoming southwest 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 37. Southwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph.
Friday
Sunny, with a high near 63. Breezy, with a west wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 27. West wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Sunny, with a high near 63. West wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 31. Northwest wind 5 to 11 mph becoming southeast in the evening. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 74. Southeast wind 5 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
Last Update:
4:13 pm MDT Apr 12, 2026
Forecast Valid:
5pm MDT Apr 12, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation