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

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

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

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

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

Partly Cloudy

64°F

18°C

Humidity 34%
Wind Speed SW 12 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 24 May 11:20 PM MST
Extended Forecast for

St. Johns AZ

  • Overnight

    Overnight: A 20 percent chance of showers after 3am. Increasing clouds, with a low around 54. Southwest wind 6 to 10 mph.

    Low: 54 °F

    Slight Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, with thunderstorms also possible after 9am. Cloudy, with a high near 75. South wind 6 to 14 mph becoming east in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. Northwest wind 5 to 13 mph becoming southeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45. West wind 7 to 17 mph becoming south after midnight. Winds could gust as high as 26 mph.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 46. Southwest wind 13 to 18 mph becoming light south. Winds could gust as high as 26 mph.

    Low: 46 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. South wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Southwest wind 15 to 20 mph becoming light south after midnight. Winds could gust as high as 29 mph.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers after 3am. Increasing clouds, with a low around 54. Southwest wind 6 to 10 mph.
Memorial Day
Showers likely, with thunderstorms also possible after 9am. Cloudy, with a high near 75. South wind 6 to 14 mph becoming east in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Monday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 45. Northwest wind 5 to 13 mph becoming southeast after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 79. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Clear, with a low around 45. West wind 7 to 17 mph becoming south after midnight. Winds could gust as high as 26 mph.
Wednesday
Sunny, with a high near 83. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Clear, with a low around 46. Southwest wind 13 to 18 mph becoming light south. Winds could gust as high as 26 mph.
Thursday
Sunny, with a high near 84. South wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly clear, with a low around 46. Southwest wind 15 to 20 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 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Friday Night
Clear, with a low around 46. West wind 15 to 20 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Saturday
Sunny, with a high near 84. Light and variable wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 16 mph.
Saturday Night
Mostly clear, with a low around 49. Southwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 84. Calm wind becoming northwest 5 to 9 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
Last Update:
10:37 pm MDT May 24, 2026
Forecast Valid:
12am MDT May 25, 2026-6pm MDT May 31, 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