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St. Johns, AZ Weather Forecast

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St. Johns, AZ Weather Forecast

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St. Johns AZ weather - Clear - 57°F
Clear
57°F
Updated 3:42 am
Feels Like 59°F
Humidity 63%
Wind S 6 mph
Barometer  30.2 in
Dew Point 45°F
St. Johns AZ weather - Clear - 14°C
Clear
14°C
Updated 3:42 am
Feels Like 15°C
Humidity 63%
Wind S 10 km/h
Barometer  102.2 kPa
Dew Point 7°C
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St. Johns Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT
St. Johns, AZ Weather - Today Mostly Cloudy St. Johns, AZ Weather - Tonight Chance Of T-Storm St. Johns, AZ Weather - Tuesday Chance Of T-Storm St. Johns, AZ Weather - Tuesday Night Chance Of T-Storm St. Johns, AZ Weather - Wednesday Chance Of T-Storm St. Johns, AZ Weather - Wednesday Night Chance Of T-Storm St. Johns, AZ Weather - Thursday Chance Of T-Storm St. Johns, AZ Weather - Thursday Night Chance Of T-Storm St. Johns, AZ Weather - Friday Chance Of T-Storm St. Johns, AZ Weather - Friday Night Chance Of T-Storm St. Johns, AZ Weather - Saturday Chance Of T-Storm St. Johns, AZ Weather - Saturday Night Chance Of T-Storm
Mostly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 78°FHi: 26°C
 Lo: 53°FLo: 12°C Hi: 77°FHi: 25°C
 Lo: 55°FLo: 13°C Hi: 72°FHi: 22°C
 Lo: 53°FLo: 12°C Hi: 73°FHi: 23°C
 Lo: 52°FLo: 11°C Hi: 74°FHi: 23°C
 Lo: 53°FLo: 12°C Hi: 79°FHi: 26°C
Lo: 54°FLo: 12°C		 Hi: 79°FHi: 26°C
Lo: 54°FLo: 12°C
POP: 10% POP: 70% POP: 60% POP: 40% POP: 20% POP: 30% POP: 40% POP: 30% POP: 10% POP: 10% POP: 10%
POP = Probability of Precipitation.
Weather Outlook Updated: 302 AM MST Mon Sep 21 2026 St. Johns, AZ Weather - WeatherWorld.com

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Issued: 245 AM MST Mon Sep 21 2026

Discussion

...After a dry weekend, we will start to see some changes in the pattern beginning today. An upper low just offshore the California coast will move just north of Las Vegas by this afternoon and then northeast through Utah on Tuesday. By late this afternoon through the overnight hours, an increase in instability primarily northwest of Flagstaff will result in a 30-50% chance of showers and thunderstorms. Moisture levels are not impressive with this initial round of showers, so generally...