As of 00:05 MST

Weather in St. Johns, AZ

43°

St. Johns, Thursday, 15 October, 00:05

Clear. Feels like 39°. High 65°, low 41°.

Pressure30.18 inHg

Wind5.7 mph S

Humidity65%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Fri, 1667° / 46°

67 °

St. Johns, Friday, 16 October

Clear. High 67°, low 46°.

Pressure30.39 inHg

Wind23.3 mph E

Humidity27%

Visibility6.2 mi

Dew point20°

Sat, 1771° / 41°

71 °

St. Johns, Saturday, 17 October

Overcast. High 71°, low 41°.

Pressure30.21 inHg

Wind14.3 mph SE

Humidity19%

Visibility6.2 mi

Dew point5°

Sun, 1869° / 46°

0.06

69 °

St. Johns, Sunday, 18 October

Light rain. High 69°, low 46°.

Pressure30.09 inHg

Wind2.4 mph N

Humidity40%

Visibility6.2 mi

Dew point39°

Mon, 1973° / 47°

0.02

73 °

St. Johns, Monday, 19 October

Light rain. High 73°, low 47°.

Pressure30.03 inHg

Wind13.8 mph W

Humidity42%

Visibility—

Dew point42°

Tue, 2071° / 51°

71 °

St. Johns, Tuesday, 20 October

Partly cloudy. High 71°, low 51°.

Pressure29.91 inHg

Wind16.4 mph SW

Humidity38%

Visibility—

Dew point40°

Wed, 2167° / 47°

67 °

St. Johns, Wednesday, 21 October

Clear. High 67°, low 47°.

Pressure29.77 inHg

Wind26.1 mph SW

Humidity31%

Visibility—

Dew point34°

Thu, 2256° / 40°

0.06

56 °

St. Johns, Thursday, 22 October

Light rain. High 56°, low 40°.

Pressure30.00 inHg

Wind19.2 mph W

Humidity45%

Visibility—

Dew point28°

Fri, 2361° / 41°

61 °

St. Johns, Friday, 23 October

Clear. High 61°, low 41°.

Pressure30.09 inHg

Wind8.2 mph NW

Humidity32%

Visibility—

Dew point24°

Sat, 2462° / 42°

62 °

St. Johns, Saturday, 24 October

Clear. High 62°, low 42°.

Pressure30.18 inHg

Wind13.5 mph NW

Humidity26%

Visibility—

Dew point21°

Sun, 2555° / 35°

55 °

St. Johns, Sunday, 25 October

Clear. High 55°, low 35°.

Pressure30.47 inHg

Wind13.2 mph NE

Humidity14%

Visibility—

Dew point-1°

Mon, 2656° / 37°

56 °

St. Johns, Monday, 26 October

Overcast. High 56°, low 37°.

Pressure30.15 inHg

Wind5.8 mph E

Humidity16%

Visibility—

Dew point4°

Tue, 2761° / 39°

61 °

St. Johns, Tuesday, 27 October

Partly cloudy. High 61°, low 39°.

Pressure30.00 inHg

Wind7 mph NW

Humidity15%

Visibility—

Dew point7°

Wed, 2868° / 44°

68 °

St. Johns, Wednesday, 28 October

Clear. High 68°, low 44°.

Pressure29.97 inHg

Wind9.6 mph NW

Humidity20%

Visibility—

Dew point17°

Thu, 2970° / 47°

70 °

St. Johns, Thursday, 29 October

Clear. High 70°, low 47°.

Pressure30.00 inHg

Wind16.3 mph W

Humidity21%

Visibility—

Dew point22°

Fri, 3065° / 49°

65 °

St. Johns, Friday, 30 October

Clear. High 65°, low 49°.

Pressure29.97 inHg

Wind18.2 mph W

Humidity31%

Visibility—

Dew point31°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for St. Johns, AZ are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in St. Johns, AZ since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.