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

Wet and Cool in the East this Memorial Day Weekend; Well Above Normal Temperatures in the Northern Plains

A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. Read More >

Current conditions at

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

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

Clear

73°F

23°C

Humidity 9%
Wind Speed W 13 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 22 May 09:55 AM MST
Extended Forecast for

St. Johns AZ

  • Today

    Today: Increasing clouds, with a high near 81. West wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 81 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 84. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. Southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. Southwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 51 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 81. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 81 °F

    Mostly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46. West wind 6 to 10 mph becoming east in the evening. Winds could gust as high as 18 mph.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 79 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Increasing clouds, with a high near 81. West wind 9 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Saturday
Sunny, with a high near 84. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 48. Southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 87. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 51. Southwest wind 5 to 10 mph becoming light and variable after midnight.
Memorial Day
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 81. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Monday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46. West wind 6 to 10 mph becoming east in the evening. Winds could gust as high as 18 mph.
Tuesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 45. West wind 11 to 16 mph becoming south 5 to 10 mph after midnight. Winds could gust as high as 24 mph.
Wednesday
Sunny, with a high near 82. Light and variable wind becoming southwest 13 to 18 mph in the afternoon. Winds could gust as high as 29 mph.
Wednesday 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.
Thursday
Sunny, with a high near 82. Light and variable wind becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 25 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:
10:42 am MDT May 22, 2026
Forecast Valid:
11am MDT May 22, 2026-6pm MDT May 28, 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