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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. 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 71%
Wind Speed SSE 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 10 Oct 03:35 AM MST
Extended Forecast for

St. Johns AZ

Wind Advisory October 11, 09:00am until October 11, 09:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. South wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 56. Southwest wind around 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.

    Low: 56 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Breezy, with a southeast wind 8 to 13 mph becoming south 21 to 26 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 77 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. South wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 38 mph.

    Low: 52 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 73. Breezy, with a light and variable wind becoming southwest 18 to 23 mph in the morning. Winds could gust as high as 40 mph.

    High: 73 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Southwest wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 36 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 69. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 25 mph in the afternoon. Winds could gust as high as 44 mph.

    High: 69 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 42. Breezy, with a southwest wind 18 to 23 mph becoming light west after midnight. Winds could gust as high as 40 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 64. Light west wind becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 64 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. South wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 56. Southwest wind around 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Breezy, with a southeast wind 8 to 13 mph becoming south 21 to 26 mph in the afternoon. Winds could gust as high as 39 mph.
Sunday Night
Mostly clear, with a low around 52. South wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 38 mph.
Columbus Day
Sunny, with a high near 73. Breezy, with a light and variable wind becoming southwest 18 to 23 mph in the morning. Winds could gust as high as 40 mph.
Monday Night
Mostly clear, with a low around 48. Southwest wind 16 to 21 mph becoming light and variable after midnight. Winds could gust as high as 36 mph.
Tuesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 69. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 25 mph in the afternoon. Winds could gust as high as 44 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 42. Breezy, with a southwest wind 18 to 23 mph becoming light west after midnight. Winds could gust as high as 40 mph.
Wednesday
Sunny, with a high near 64. Light west wind becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Clear, with a low around 38. Northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 67. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
Clear, with a low around 42. Northwest wind 6 to 10 mph becoming southeast in the evening. Winds could gust as high as 17 mph.
Friday
Sunny, with a high near 69. East wind 9 to 14 mph increasing to 16 to 21 mph in the morning. Winds could gust as high as 28 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St. Johns AZ
 34.51°N 109.37°W (Elev. 5797 ft)
Last Update:
4:13 am MDT Oct 10, 2026
Forecast Valid:
4am MDT Oct 10, 2026-6pm MDT Oct 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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