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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

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

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

Clear

37°F

3°C

Humidity 60%
Wind Speed S 4 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 15 Apr 06:30 AM MST
Extended Forecast for

9 Miles S St. Johns AZ

  • Today

    Today: Sunny, with a high near 66. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. Northwest wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 71. Breezy, with a southwest wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 71 °F

    Sunny then
    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. Breezy, with a southwest wind 18 to 23 mph decreasing to 11 to 16 mph in the evening. Winds could gust as high as 37 mph.

    Low: 36 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 65. Breezy, with a southwest wind 18 to 23 mph becoming west 24 to 29 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 65 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Clear, with a low around 24. Blustery, with a northwest wind 14 to 23 mph becoming northeast after midnight. Winds could gust as high as 37 mph.

    Low: 24 °F

    Clear and
    Blustery then
    Clear

  • Saturday

    Saturday: Sunny, with a high near 67. Northeast wind 11 to 14 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North wind 7 to 11 mph becoming southeast after midnight. Winds could gust as high as 16 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73. Southeast wind 11 to 16 mph, with gusts as high as 24 mph.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 66. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 30. Northwest wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.
Thursday
Increasing clouds, with a high near 71. Breezy, with a southwest wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 38 mph.
Thursday Night
Partly cloudy, with a low around 36. Breezy, with a southwest wind 18 to 23 mph decreasing to 11 to 16 mph in the evening. Winds could gust as high as 37 mph.
Friday
Sunny, with a high near 65. Breezy, with a southwest wind 18 to 23 mph becoming west 24 to 29 mph in the afternoon. Winds could gust as high as 45 mph.
Friday Night
Clear, with a low around 24. Blustery, with a northwest wind 14 to 23 mph becoming northeast after midnight. Winds could gust as high as 37 mph.
Saturday
Sunny, with a high near 67. Northeast wind 11 to 14 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 35. North wind 7 to 11 mph becoming southeast after midnight. Winds could gust as high as 16 mph.
Sunday
Mostly sunny, with a high near 73. Southeast wind 11 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Mostly cloudy, with a low around 39. South wind 10 to 15 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 74. South wind 9 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 39. Southwest wind 8 to 16 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 75. South wind 8 to 13 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles S St. Johns AZ
 34.37°N 109.38°W (Elev. 5997 ft)
Last Update:
4:34 am MDT Apr 15, 2026
Forecast Valid:
8am MDT Apr 15, 2026-6pm MDT Apr 21, 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