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

Dangerous Fire Conditions in the Southern High Plains; Severe Weather in the Central Plains and Upper Midwest; Late-Season Mountain Snow

Dry and windy conditions will produce dangerous fire weather conditions across the southern High Plains into the Southwest. Severe storms, including very large hail, strong tornadoes, and winds, are expected in the central Plains into the Upper Midwest. Heavy late-season snow and record cold temperatures are expected in the northern to central Rockies. Heat is spreading across the eastern U.S.. 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 23%
Wind Speed SW 9 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 17 May 04:35 AM MST
Extended Forecast for

St. Johns AZ

Wind Advisory May 17, 12:00pm until May 17, 09:00pm
Red Flag Warning May 17, 12:00pm until May 17, 09:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning

  • Today

    Today: Patchy blowing dust after 3pm. Sunny, with a high near 80. Breezy, with a southwest wind 13 to 18 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 46 mph.

    High: 80 °F

    Sunny then
    Patchy
    Blowing Dust
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 49. Breezy, with a southwest wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 45 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 74. Breezy, with a west wind 21 to 25 mph, with gusts as high as 41 mph.

    High: 74 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 40. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 37 mph.

    Low: 40 °F

    Clear and
    Breezy then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. South wind 9 to 14 mph becoming west in the morning. Winds could gust as high as 22 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. South wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45. Southwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 81. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Patchy blowing dust after 3pm. Sunny, with a high near 80. Breezy, with a southwest wind 13 to 18 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 46 mph.
Tonight
Mostly clear, with a low around 49. Breezy, with a southwest wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 45 mph.
Monday
Sunny, with a high near 74. Breezy, with a west wind 21 to 25 mph, with gusts as high as 41 mph.
Monday Night
Clear, with a low around 40. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 37 mph.
Tuesday
Sunny, with a high near 79. South wind 9 to 14 mph becoming west in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 45. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 80. South wind 10 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 45. Southwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Thursday
Sunny, with a high near 81. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 46. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 82. Light and variable wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 49. West wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 83. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
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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:
5:05 am MDT May 17, 2026
Forecast Valid:
5am MDT May 17, 2026-6pm MDT May 23, 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