As of 10:09 MST

Weather in St. Johns, AZ

54°

St. Johns, Thursday, 15 October, 10:09

Clear. Feels like 51°. High 65°, low 40°.

Pressure30.30 inHg

Wind5.7 mph N

Humidity47%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Fri, 1666° / 46°

66 °

St. Johns, Friday, 16 October

Clear. High 66°, low 46°.

Pressure30.39 inHg

Wind23.3 mph E

Humidity27%

Visibility6.2 mi

Dew point21°

Sat, 1770° / 41°

70 °

St. Johns, Saturday, 17 October

Overcast. High 70°, low 41°.

Pressure30.21 inHg

Wind14.6 mph SE

Humidity23%

Visibility6.2 mi

Dew point15°

Sun, 1868° / 46°

68 °

St. Johns, Sunday, 18 October

Partly cloudy. High 68°, low 46°.

Pressure30.09 inHg

Wind6.4 mph E

Humidity40%

Visibility6.2 mi

Dew point39°

Mon, 1973° / 47°

73 °

St. Johns, Monday, 19 October

Partly cloudy. High 73°, low 47°.

Pressure30.00 inHg

Wind15.1 mph W

Humidity34%

Visibility—

Dew point36°

Tue, 2073° / 49°

73 °

St. Johns, Tuesday, 20 October

Light rain. High 73°, low 49°.

Pressure30.03 inHg

Wind8.9 mph SE

Humidity41%

Visibility—

Dew point41°

Wed, 2173° / 53°

73 °

St. Johns, Wednesday, 21 October

Clear. High 73°, low 53°.

Pressure29.85 inHg

Wind23.9 mph SW

Humidity32%

Visibility—

Dew point37°

Thu, 2265° / 43°

0.1

65 °

St. Johns, Thursday, 22 October

Light rain. High 65°, low 43°.

Pressure29.77 inHg

Wind23.9 mph SW

Humidity31%

Visibility—

Dew point32°

Fri, 2358° / 42°

58 °

St. Johns, Friday, 23 October

Clear. High 58°, low 42°.

Pressure30.09 inHg

Wind14.9 mph W

Humidity38%

Visibility—

Dew point28°

Sat, 2470° / 45°

70 °

St. Johns, Saturday, 24 October

Clear. High 70°, low 45°.

Pressure30.12 inHg

Wind9.8 mph E

Humidity20%

Visibility—

Dew point20°

Sun, 2572° / 48°

72 °

St. Johns, Sunday, 25 October

Partly cloudy. High 72°, low 48°.

Pressure29.91 inHg

Wind20.8 mph SW

Humidity28%

Visibility—

Dew point33°

Mon, 2667° / 50°

67 °

St. Johns, Monday, 26 October

Clear. High 67°, low 50°.

Pressure29.80 inHg

Wind31.5 mph SW

Humidity29%

Visibility—

Dew point31°

Tue, 2756° / 42°

56 °

St. Johns, Tuesday, 27 October

Clear. High 56°, low 42°.

Pressure29.88 inHg

Wind28.9 mph W

Humidity32%

Visibility—

Dew point25°

Wed, 2863° / 39°

63 °

St. Johns, Wednesday, 28 October

Overcast. High 63°, low 39°.

Pressure30.03 inHg

Wind13.4 mph W

Humidity14%

Visibility—

Dew point3°

Thu, 2964° / 43°

64 °

St. Johns, Thursday, 29 October

Partly cloudy. High 64°, low 43°.

Pressure29.91 inHg

Wind20.3 mph W

Humidity19%

Visibility—

Dew point16°

Fri, 3060° / 40°

60 °

St. Johns, Friday, 30 October

Clear. High 60°, low 40°.

Pressure30.15 inHg

Wind7.2 mph N

Humidity27%

Visibility—

Dew point19°

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.