Observed 12:50 PM MST at KPHX

St. Johns, AZ weather

Mostly cloudy and 75°24°.

Mostly agree

Now 75°24°

Mostly cloudy

Wind: 5 mph8 km/hgusts 11 mph17 km/h; From the west-southwest. Up to 5 mph8 km/h through 1 AM
Dew point: 45°7°; Comfortable
UV index: 5Moderate; Moderate until 5 PM
Air quality: 43Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 29.9 inHg1013 hPa; Falling slowly · −0.02 inHg−0.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 79°26° today at 2 PM
Below 70°21° tonight after 9 PM
Low 58°14° tomorrow at 7 AM
Above 70°21° tomorrow by 10 AM

This afternoonNear 78°26° · Partly cloudy
TonightDown to 60°16° by 4 AM · Clear
Tomorrow morningUp to 75°24° by 11 AM · Clear
Tomorrow afternoonUp to 82°28° by 3 PM · Clear
Tomorrow nightDown to 59°15° by 5 AM · Partly cloudy
Monday morningUp to 77°25° by 11 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 1p	Mostly sunny	78°26° (likely 75°24° to 79°26°)	78°26°	10%	5 mph8 km/h from WSW, gusts 11 mph17 km/h	31%	26%	5
Sat 2p	Mostly sunny	79°26° (likely 76°24° to 80°27°)	79°26°	5%	5 mph8 km/h from W, gusts 10 mph15 km/h	30%	30%	5
Sat 3p	Mostly sunny	79°26° (likely 76°24° to 80°27°)	79°26°	0%	5 mph8 km/h from W, gusts 10 mph15 km/h	30%	18%	4
Sat 4p	Mostly sunny	78°26° (likely 76°24° to 79°26°)	78°26°	0%	5 mph8 km/h from WSW, gusts 8 mph13 km/h	30%	33%	3
Sat 5p	Mostly sunny	77°25° (likely 76°24° to 78°26°)	77°25°	0%	5 mph8 km/h from WSW, gusts 6 mph10 km/h	31%	21%	1
Sat 6p	Clear	75°24° (likely 72°22° to 75°24°)	75°24°	0%	5 mph8 km/h from WSW, gusts 6 mph10 km/h	33%	7%	0
Sat 7p	Clear	72°22° (likely 68°20° to 73°23°)	72°22°	0%	0 mph0 km/h, gusts 6 mph10 km/h	38%	10%	0
Sat 8p	Mostly clear	70°21° (likely 66°19° to 72°22°)	70°21°	0%	0 mph0 km/h, gusts 6 mph10 km/h	41%	14%	0
Sat 9p	Clear	69°21° (likely 65°18° to 70°21°)	69°21°	0%	0 mph0 km/h, gusts 5 mph8 km/h	44%	2%	0
Sat 10p	Clear	67°19° (likely 63°17° to 69°21°)	67°19°	0%	0 mph0 km/h, gusts 7 mph11 km/h	47%	1%	0
Sat 11p	Clear	66°19° (likely 61°16° to 68°20°)	66°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	48%	1%	0
Sun 12a	Clear	65°18° (likely 59°15° to 67°19°)	65°18°	0%	0 mph0 km/h, gusts 3 mph5 km/h	50%	0%	0
Sun 1a	Clear	63°17° (likely 57°14° to 66°19°)	63°17°	0%	0 mph0 km/h, gusts 4 mph7 km/h	54%	0%	0
Sun 2a	Clear	63°17° (likely 56°13° to 65°18°)	63°17°	0%	0 mph0 km/h, gusts 3 mph5 km/h	54%	0%	0
Sun 3a	Clear	61°16° (likely 56°13° to 64°18°)	61°16°	0%	0 mph0 km/h, gusts 2 mph4 km/h	60%	1%	0
Sun 4a	Clear	60°16° (likely 56°13° to 63°17°)	60°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	62%	1%	0
Sun 5a	Clear	60°16° (likely 56°13° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	62%	1%	0
Sun 6a	Clear	59°15° (likely 55°13° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 2 mph4 km/h	62%	1%	0
Sun 7a	Sunny	58°14° (likely 52°11° to 62°17°)	58°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	67%	0%	0
Sun 8a	Sunny	62°17° (likely 56°13° to 64°18°)	62°17°	0%	0 mph0 km/h, gusts 3 mph5 km/h	60%	0%	1
Sun 9a	Sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	50%	0%	2
Sun 10a	Sunny	71°22° (likely 69°21° to 73°23°)	71°22°	0%	0 mph0 km/h, gusts 4 mph7 km/h	42%	0%	3
Sun 11a	Sunny	75°24° (likely 72°22° to 77°25°)	75°24°	0%	0 mph0 km/h, gusts 5 mph9 km/h	34%	0%	5
Sun 12p	Sunny	78°26° (likely 76°24° to 80°27°)	78°26°	0%	0 mph0 km/h, gusts 6 mph9 km/h	31%	0%	5
Sun 1p	Sunny	80°27° (likely 78°26° to 81°27°)	79°26°	0%	0 mph0 km/h, gusts 6 mph10 km/h	27%	0%	6
Sun 2p	Sunny	81°27° (likely 79°26° to 82°28°)	79°26°	0%	5 mph8 km/h from NNW, gusts 7 mph11 km/h	25%	0%	5
Sun 3p	Sunny	82°28° (likely 79°26° to 82°28°)	80°27°	0%	5 mph8 km/h from NNW, gusts 7 mph12 km/h	24%	0%	4
Sun 4p	Sunny	80°27° (likely 79°26° to 81°27°)	79°26°	0%	5 mph8 km/h from NNW, gusts 8 mph12 km/h	25%	0%	2
Sun 5p	Sunny	80°27° (likely 77°25° to 80°27°)	79°26°	0%	5 mph8 km/h from NNW, gusts 8 mph12 km/h	25%	0%	1
Sun 6p	Clear	76°24° (likely 72°22° to 77°25°)	76°24°	0%	0 mph0 km/h, gusts 4 mph7 km/h	30%	0%	0
Sun 7p	Clear	73°23° (likely 68°20° to 76°24°)	73°23°	0%	0 mph0 km/h, gusts 5 mph7 km/h	34%	0%	0
Sun 8p	Clear	71°22° (likely 67°19° to 74°23°)	71°22°	0%	0 mph0 km/h, gusts 5 mph8 km/h	36%	0%	0
Sun 9p	Clear	70°21° (likely 66°19° to 72°22°)	70°21°	0%	0 mph0 km/h, gusts 5 mph7 km/h	39%	0%	0
Sun 10p	Clear	68°20° (likely 64°18° to 71°22°)	68°20°	0%	0 mph0 km/h, gusts 6 mph9 km/h	42%	1%	0
Sun 11p	Clear	67°19° (likely 61°16° to 70°21°)	67°19°	0%	0 mph0 km/h, gusts 8 mph12 km/h	43%	40%	0
Mon 12a	Clear	66°19° (likely 59°15° to 69°21°)	66°19°	0%	0 mph0 km/h, gusts 7 mph11 km/h	43%	41%	0
Mon 1a	Mostly clear	64°18° (likely 58°14° to 68°20°)	64°18°	0%	0 mph0 km/h, gusts 7 mph12 km/h	48%	44%	0
Mon 2a	Mostly clear	63°17° (likely 56°13° to 67°19°)	63°17°	0%	0 mph0 km/h, gusts 7 mph11 km/h	50%	49%	0
Mon 3a	Partly cloudy	61°16° (likely 56°13° to 66°19°)	61°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	56%	46%	0
Mon 4a	Clear	60°16° (likely 56°13° to 64°18°)	60°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	58%	43%	0
Mon 5a	Clear	59°15° (likely 55°13° to 63°17°)	59°15°	0%	0 mph0 km/h, gusts 5 mph9 km/h	60%	42%	0
Mon 6a	Clear	57°14° (likely 53°12° to 62°17°)	57°14°	0%	0 mph0 km/h, gusts 4 mph7 km/h	62%	42%	0
Mon 7a	Sunny	58°14° (likely 52°11° to 62°17°)	58°14°	0%	0 mph0 km/h, gusts 5 mph7 km/h	62%	42%	0
Mon 8a	Sunny	61°16° (likely 56°13° to 64°18°)	61°16°	0%	5 mph8 km/h from ENE, gusts 6 mph9 km/h	58%	42%	1
Mon 9a	Sunny	66°19° (likely 63°17° to 68°20°)	66°19°	0%	5 mph8 km/h from ENE, gusts 6 mph10 km/h	47%	38%	2
Mon 10a	Sunny	71°22° (likely 68°20° to 74°23°)	71°22°	0%	5 mph8 km/h from ENE, gusts 8 mph13 km/h	38%	34%	3
Mon 11a	Sunny	77°25° (likely 72°22° to 78°26°)	77°25°	0%	5 mph8 km/h from ENE, gusts 7 mph12 km/h	29%	23%	5
Mon 12p	Sunny	80°27° (likely 75°24° to 81°27°)	79°26°	0%	5 mph8 km/h from ENE, gusts 7 mph11 km/h	25%	3%	5

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly sunny. High 79°26°, low 58°14°. Typical 86°30° / 62°17°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Mostly sunny, 79°26°
  Dry
2. Evening
  6 PM–midnight
  Clear, 70°21°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 60°16°
  Dry
Official NWS forecast
Today: Sunny. High near 79, with temperatures falling to around 77 in the afternoon. West southwest wind around 5 mph.
Tonight: Clear. Low around 58, with temperatures rising to around 60 overnight. West wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–80°27°
Low, likely
57°14°–66°19°
Typical high / low
86°30° / 62°17°
Wind
9 mph14 km/h, gusts 15 mph25 km/h
UV peak
5
Tomorrow, Oct 25. Sunny. High 82°28°, low 57°14°. Typical 86°30° / 62°17°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 62°17°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 82°28°
  Dry
3. Evening
  6 PM–midnight
  Clear, 71°22°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 59°15°
  Dry
Official NWS forecast
Day: Sunny. High near 82, with temperatures falling to around 80 in the afternoon. East northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 57. North northeast wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
79°26°–82°28°
Low, likely
52°11°–62°17°
Typical high / low
86°30° / 62°17°
Wind
7 mph11 km/h, gusts 15 mph24 km/h
UV peak
6
Monday, Oct 26. Mostly sunny. High 85°29°, low 60°16°. Typical 85°29° / 62°17°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 83°28°
  Dry
3. Evening
  6 PM–midnight
  Clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 60°16°
  Dry
Official NWS forecast
Day: Sunny, with a high near 85. Northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 60. North northwest wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
81°27°–85°29°
Low, likely
52°11°–62°17°
Typical high / low
85°29° / 62°17°
Wind
6 mph10 km/h, gusts 13 mph21 km/h
UV peak
6
Tuesday, Oct 27. Sunny. High 86°30°, low 61°16°. Typical 85°29° / 61°16°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 63°17°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 84°29°
  Dry
3. Evening
  6 PM–midnight
  Clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 60°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 86. East wind 0 to 5 mph.
Night: Mostly clear, with a low around 61. North northeast wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
82°28°–86°30°
Low, likely
51°11°–65°18°
Typical high / low
85°29° / 61°16°
Wind
5 mph8 km/h, gusts 17 mph27 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 87°31°, low 63°17°. Typical 85°29° / 61°16°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 62°17°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 85°29°
  Dry
3. Evening
  6 PM–midnight
  Clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 62°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 87. East southeast wind 0 to 5 mph.
Night: Partly cloudy, with a low around 63. North northeast wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
83°28°–87°31°
Low, likely
50°10°–66°19°
Typical high / low
85°29° / 61°16°
Wind
6 mph9 km/h, gusts 14 mph23 km/h
UV peak
5
Thursday, Oct 29. Cloudy. High 86°30°, low 64°18°. Typical 84°29° / 60°16°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 63°17°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 84°29°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 74°23°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 65°18°
  30% chance · 0.17 in4.2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 86. Southeast wind around 5 mph.
Night: Showers and thunderstorms likely after 11pm. Mostly cloudy, with a low around 64. South southwest wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
82°28°–86°30°
Low, likely
53°12°–67°19°
Typical high / low
84°29° / 60°16°
Wind
7 mph11 km/h, gusts 20 mph33 km/h
UV peak
4
Friday, Oct 30. Thunderstorms. High 78°26°, low 61°16°. Typical 84°29° / 60°16°. Storms 0.36 in9.1 mm, 60% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 66°19°
  50% chance · 0.06 in1.6 mm
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  50% chance · 0.04 in0.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 65°19°
  40% chance · 0.09 in2.3 mm
4. Overnight
  midnight–6 AM
  Partly cloudy, 62°17°
  40% chance · 0.08 in2.1 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely before 11am, then showers and thunderstorms likely. Mostly cloudy, with a high near 78. South southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–78°26°
Low, likely
58°14°–66°19°
Typical high / low
84°29° / 60°16°
Wind
12 mph20 km/h, gusts 30 mph48 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 72°22°, low 60°16°. Typical 83°28° / 60°16°. Rain 0.35 in8.9 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 62°17°
  40% chance · 0.02 in0.5 mm
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  40% chance · 0.15 in3.9 mm
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  40% chance
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  40% chance · 0.05 in1.4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–76°24°
Low, likely
57°14°–63°17°
Typical high / low
83°28° / 60°16°
Wind
9 mph14 km/h, gusts 21 mph34 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 71°22°, low 58°14°. Typical 83°28° / 59°15°. Rain 0.25 in6.4 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  40% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  40% chance · 0.08 in2 mm
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  40% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–80°27°
Low, likely
49°9°–65°18°
Typical high / low
83°28° / 59°15°
Wind
8 mph12 km/h, gusts 18 mph29 km/h
UV peak
5
Monday, Nov 2. Drizzle. High 72°22°, low 55°13°. Typical 83°28° / 59°15°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 59°15°
  30% chance
2. Afternoon
  noon–6 PM
  Mostly sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–81°27°
Low, likely
39°4°–71°22°
Typical high / low
83°28° / 59°15°
Wind
10 mph16 km/h
UV peak
5

10 days15 days30 days

The outlook

Today
Dry, high 79°, low 58°.
Tomorrow
Dry, high 82°, low 57°, warming up.
Monday
Dry, high 85°, low 60°, warming up.
Rest of week
Highs 71–87°; chance of precipitation on Friday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PSR) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Salt River at 51st Ave-Phoenix

6.8 mi

Below flood stage

Level: 1.9 ft
Flow: 6 cfs

Forecast peak 2.8 ft Fri 5 PM

Reading from Sat 12 PM · NWS gauge page

Gila River near Maricopa

15 mi

Below flood stage

Level: 1.0 ft

Forecast peak 1.9 ft Sat 1 PM

Reading from Sat 11:30 AM · NWS gauge page

Salt River at Priest Road-Tempe

16 mi

Below flood stage

Level: 1.0 ft

Forecast peak 4.1 ft Fri 2 PM

Reading from Sat 11:30 AM · NWS gauge page

Indian Bend Wash at Sweetwater Rd

23 mi

Below flood stage

Level: 0.0 ft

Reading from Sat 12 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Cooling this week

About 81% less cooling than a typical week.

This week 11Typical 57

Cooling degree days, base 65°F

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 4:00 PM–5:00 AM

Good stretch to open the windows.

Is this typical?

Phoenix Area · official normals 1991–2020 · records 1895–2026

Oct 24, today vs a typical year

Today’s expected high is 7°4° colder than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

±0°SunOct 18
+3°+1°MonOct 19
+6°+3°TueOct 20
+9°+5°WedOct 21
+6°+3°ThuOct 22
−1°FriOct 23
—SatOct 24

St. Johns weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 11 h 4 min; Losing 1 min 57 s a day; shortest Dec 21, 1 h 7 min less
Golden hour: 5:10–6:00 PM; Morning 6:25–7:14 AM
Blue hour: 6:00–6:10 PM; Morning 6:15–6:25 AM; first light 6:15 AM

Stars tonight? Fair

Clear 6:10 PM–6:16 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:02 AM · rises 4:42 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from St. Johns. The highest point on the skyline is about 4,300 ft, 5 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.

St. Johns, AZ weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Salt River at 51st Ave-Phoenix

Gila River near Maricopa

Salt River at Priest Road-Tempe

Indian Bend Wash at Sweetwater Rd

For your home

Cooling this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon