As of 05:10 MST

Weather in St. Johns, AZ

43°

St. Johns, Sunday, 18 October, 05:10

Clear. Feels like 43°. High 68°, low 43°.

Pressure30.24 inHg

Wind0 mph N

Humidity81%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Mon, 1969° / 45°

0.07

69 °

St. Johns, Monday, 19 October

Light rain. High 69°, low 45°.

Pressure30.00 inHg

Wind2.4 mph S

Humidity38%

Visibility6.0 mi

Dew point42°

Tue, 2075° / 51°

75 °

St. Johns, Tuesday, 20 October

Mostly clear. High 75°, low 51°.

Pressure30.00 inHg

Wind5.1 mph NW

Humidity39%

Visibility6.2 mi

Dew point45°

Wed, 2165° / 53°

0.8

65 °

St. Johns, Wednesday, 21 October

Rain. High 65°, low 53°.

Pressure30.06 inHg

Wind7.5 mph W

Humidity71%

Visibility2.6 mi

Dew point55°

Thu, 2267° / 51°

0.39

67 °

St. Johns, Thursday, 22 October

Rain. High 67°, low 51°.

Pressure29.91 inHg

Wind9.8 mph SE

Humidity63%

Visibility—

Dew point53°

Fri, 2362° / 49°

0.13

62 °

St. Johns, Friday, 23 October

Light rain. High 62°, low 49°.

Pressure29.97 inHg

Wind13.3 mph W

Humidity50%

Visibility—

Dew point38°

Sat, 2466° / 48°

66 °

St. Johns, Saturday, 24 October

Clear. High 66°, low 48°.

Pressure30.06 inHg

Wind10.2 mph N

Humidity38%

Visibility—

Dew point34°

Sun, 2564° / 53°

0.04

64 °

St. Johns, Sunday, 25 October

Light rain. High 64°, low 53°.

Pressure30.06 inHg

Wind22.4 mph E

Humidity51%

Visibility—

Dew point43°

Mon, 2655° / 52°

0.54

55 °

St. Johns, Monday, 26 October

Rain. High 55°, low 52°.

Pressure29.97 inHg

Wind19.8 mph SE

Humidity83%

Visibility—

Dew point48°

Tue, 2761° / 48°

0.08

61 °

St. Johns, Tuesday, 27 October

Light rain. High 61°, low 48°.

Pressure30.03 inHg

Wind12 mph W

Humidity67%

Visibility—

Dew point44°

Wed, 2863° / 50°

0.02

63 °

St. Johns, Wednesday, 28 October

Light rain. High 63°, low 50°.

Pressure29.97 inHg

Wind18.6 mph W

Humidity51%

Visibility—

Dew point41°

Thu, 2963° / 49°

63 °

St. Johns, Thursday, 29 October

Overcast. High 63°, low 49°.

Pressure29.91 inHg

Wind12.2 mph NW

Humidity44%

Visibility—

Dew point36°

Fri, 3064° / 47°

64 °

St. Johns, Friday, 30 October

Clear. High 64°, low 47°.

Pressure29.91 inHg

Wind11.8 mph NW

Humidity35%

Visibility—

Dew point31°

Sat, 3165° / 46°

65 °

St. Johns, Saturday, 31 October

Clear. High 65°, low 46°.

Pressure29.97 inHg

Wind13.5 mph NW

Humidity28%

Visibility—

Dew point26°

Sun, 0165° / 47°

65 °

St. Johns, Sunday, 1 November

Mostly clear. High 65°, low 47°.

Pressure30.12 inHg

Wind9.8 mph NW

Humidity30%

Visibility—

Dew point27°

Mon, 0268° / 47°

68 °

St. Johns, Monday, 2 November

Clear. High 68°, low 47°.

Pressure30.15 inHg

Wind5.5 mph N

Humidity13%

Visibility—

Dew point10°

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.