Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

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

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

Mostly Cloudy

43°F

6°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 18 Oct 06:54 AM MST
Extended Forecast for

10 Miles S St. Johns AZ

  • Today

    Today: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 69. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 69 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 9pm.  Mostly clear, with a low around 43. Southwest wind around 6 mph becoming light and variable.

    Low: 43 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 71. Southeast wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 15 mph.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Southwest wind 6 to 9 mph becoming southeast after midnight.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Southeast wind 8 to 16 mph, with gusts as high as 23 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50. South wind 8 to 11 mph, with gusts as high as 16 mph.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after noon.  Mostly cloudy, with a high near 75. Breezy, with a southeast wind 13 to 22 mph, with gusts as high as 32 mph.

    High: 75 °F

    Chance
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 52. Southeast wind 10 to 17 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 73. Windy, with a southeast wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 43 mph.  Chance of precipitation is 70%.

    High: 73 °F

    Chance
    Showers and
    Breezy then
    Showers
    Likely and
    Windy

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 43. Southwest wind around 6 mph becoming light and variable.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. Southeast wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 45. Southwest wind 6 to 9 mph becoming southeast after midnight.
Tuesday
Mostly sunny, with a high near 74. Southeast wind 8 to 16 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 50. South wind 8 to 11 mph, with gusts as high as 16 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 75. Breezy, with a southeast wind 13 to 22 mph, with gusts as high as 32 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 52. Southeast wind 10 to 17 mph, with gusts as high as 24 mph.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Windy, with a southeast wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 48. South wind 7 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 66. South wind 7 to 12 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 38. West wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 64. Calm wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S St. Johns AZ
 34.35°N 109.35°W (Elev. 5997 ft)
4:11 am MDT Oct 18, 2026
8am MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
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Additional Resources

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