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

Unsettled Weather in the Eastern U.S. through Memorial Day

Wet, stormy, and unsettled weather continues for much of the eastern half of the U.S. through Memorial Day. There is potential for scattered flash flooding across the Central Gulf Coast into North Georgia and across the Upper Ohio Valley. Severe storms capable of hail/wind may occur across the Middle Missouri Valley/Siouxland and across other parts of the central and southern Plains and Southeast. Read More >

Current conditions at

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

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

Clear

77°F

25°C

Humidity 16%
Wind Speed N 5 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 24 May 10:20 AM MST
Extended Forecast for

St. Johns AZ

  • Today

    Today: Mostly sunny, with a high near 84. Light northwest wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. West wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 17 mph.

    Low: 54 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: Showers likely, then showers and possibly a thunderstorm after 9am. High near 75. South wind 7 to 11 mph becoming northwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. North wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45. West wind 8 to 17 mph becoming south after midnight. Winds could gust as high as 26 mph.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. South wind 9 to 17 mph, with gusts as high as 28 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45. Southwest wind 15 to 20 mph becoming light and variable. Winds could gust as high as 30 mph.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Southeast wind 5 to 10 mph becoming southwest 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 84. Light northwest wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
Tonight
Mostly cloudy, with a low around 54. West wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 17 mph.
Memorial Day
Showers likely, then showers and possibly a thunderstorm after 9am. High near 75. South wind 7 to 11 mph becoming northwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. North wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 78. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 45. West wind 8 to 17 mph becoming south after midnight. Winds could gust as high as 26 mph.
Wednesday
Sunny, with a high near 83. South wind 9 to 17 mph, with gusts as high as 28 mph.
Wednesday Night
Clear, with a low around 45. Southwest wind 15 to 20 mph becoming light and variable. Winds could gust as high as 30 mph.
Thursday
Sunny, with a high near 83. Southeast wind 5 to 10 mph becoming southwest 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly clear, with a low around 46. Southwest wind 13 to 18 mph becoming light south after midnight. Winds could gust as high as 29 mph.
Friday
Sunny, with a high near 82. Light and variable wind becoming west 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Mostly clear, with a low around 47. West wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 29 mph.
Saturday
Sunny, with a high near 82. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 17 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:
10:52 am MDT May 24, 2026
Forecast Valid:
11am MDT May 24, 2026-6pm MDT May 30, 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