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

52°F

11°C

Humidity 53%
Wind Speed WSW 6 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 13 Apr 01:05 AM MST
Extended Forecast for

St. Johns AZ

Wind Advisory April 13, 09:00am until April 13, 09:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Southwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 66. Breezy, with a southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 66 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers, with thunderstorms also possible after 3am. Partly cloudy, with a low around 40. Breezy, with a west wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Showers and
    Breezy then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 61. West wind 14 to 20 mph, with gusts as high as 33 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. Southwest wind 13 to 18 mph decreasing to 7 to 12 mph in the evening. Winds could gust as high as 31 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. West wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37. West wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 71. South wind 9 to 14 mph becoming southwest 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38. Southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Southwest wind around 11 mph, with gusts as high as 20 mph.
Monday
Increasing clouds, with a high near 66. Breezy, with a southwest wind 9 to 14 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph.
Monday Night
A slight chance of showers, with thunderstorms also possible after 3am. Partly cloudy, with a low around 40. Breezy, with a west wind 18 to 23 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 61. West wind 14 to 20 mph, with gusts as high as 33 mph.
Tuesday Night
Mostly clear, with a low around 34. Southwest wind 13 to 18 mph decreasing to 7 to 12 mph in the evening. Winds could gust as high as 31 mph.
Wednesday
Sunny, with a high near 67. West wind 7 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 37. West wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 71. South wind 9 to 14 mph becoming southwest 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Thursday Night
Partly cloudy, with a low around 38. Southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 29 mph.
Friday
Sunny, with a high near 65. Breezy, with a west wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 27. West wind 13 to 18 mph becoming southwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.
Saturday
Sunny, with a high near 66. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph.
Saturday Night
Mostly clear, with a low around 34. North wind 5 to 10 mph becoming south in the evening. Winds could gust as high as 17 mph.
Sunday
Mostly sunny, with a high near 75. Southeast wind 6 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 24 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:
12:37 am MDT Apr 13, 2026
Forecast Valid:
2am MDT Apr 13, 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