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Phoenix, Arizona weather

Current conditions, hourly and 7-day forecast, official alerts, and air quality for Phoenix, United States. Coordinates 33.45, -112.07 · America/Phoenix.

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WARNINGalert level: Warning

Extreme Heat Warning

WeatherSignal priority 71/100

Extreme Heat Warning issued August 28 at 1:56PM MST until August 29 at 8:00PM MST by NWS Phoenix AZ

Official severity:
Severe
Urgency:
Expected
Certainty:
Likely
Issued by:
NWS Phoenix AZ
Starts:
8/28/2026, 8:56:00 PM
Expires:
8/29/2026, 11:00:00 AM
Area:
Northwest Valley; Buckeye/Avondale; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/Paradise Valley; East Valley; South Mountain/Ahwatukee; Southeast Valley/Queen Creek
Official recommended action

An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.

Read the full official alert
UNKNOWNalert level: Unknown

Air Quality Alert

WeatherSignal priority 10/100

Air Quality Alert issued August 27 at 10:39AM MST by NWS Phoenix AZ

Official severity:
Unknown
Urgency:
Unknown
Certainty:
Unknown
Issued by:
NWS Phoenix AZ
Starts:
8/27/2026, 5:39:00 PM
Expires:
8/29/2026, 4:00:00 AM
Area:
Maricopa, AZ
Read the full official alert
UNKNOWNalert level: Unknown

Air Quality Alert

WeatherSignal priority 8/100

Air Quality Alert issued August 28 at 11:18AM MST by NWS Phoenix AZ

Official severity:
Unknown
Urgency:
Unknown
Certainty:
Unknown
Issued by:
NWS Phoenix AZ
Starts:
8/28/2026, 6:18:00 PM
Expires:
8/30/2026, 4:00:00 AM
Area:
Maricopa, AZ
Read the full official alert

Phoenix, Arizona

United States · America/Phoenix

105°F

Mainly clear

Feels like 105° · High 110° / Low 89°

Precipitation
0%

Chance of measurable precipitation this hour

Wind
6 NWmph

Sustained wind speed and direction

Humidity
19%

How much moisture the air holds

Visibility
0.0mi

How far you can clearly see

Pressure
1007hPa

Falling pressure often means unsettled weather

Dew point
54°F

Above 65° feels muggy

UV index
9.6

8 or higher: limit midday sun

Air quality
54

US EPA AQI · Moderate

Sunrise 11 PM Sunset 11 AM Cloud cover 17% Wind direction NW

Source updated: 2:20:38 AM · WeatherSignal checked: 2:20:38 AM

Source: Open-Meteo (national weather-service models)

WeatherSignal Right Now

Plain-language answers calculated from this location's own forecast values — see how each one works on our methodology page.

Today's Weather Score

19/100

Stay in

Starts at 100 and subtracts published penalties for heat, cold, rain, wind, UV, humidity, low visibility, and active official alerts.

  • Feels like 105° — dangerous heat-35
  • UV index 9.6 — very high-6
  • Visibility 0.0 mi-10
  • Active Extreme Heat Warning-30
How this score is calculated

Right now

It's 105°, mainly clear, 19% humidity. 3 official alerts in effect — see the warning above.

Today's high is 8° warmer than the average of the next 6 days.

  • Umbrella or nah?

    Nah(Favourable)

    Nothing in the next 12 hours reaches a 40% chance of rain. Peak chance is 0%.

    Why
    • Peak precipitation probability: 0%
    • Total expected precipitation: 0.00″

  • Best time today

    6 AM(Favourable)

    6 AM has the most comfortable combination of temperature, rain chance, wind, and humidity in the remaining daylight hours.

    Why
    • Feels like 89°
    • Rain chance 0%
    • Wind 4 mph
    • Humidity 38%

  • Car wash check

    Go for it(Favourable)

    No hour in the next 48 hours reaches a 50% chance of rain or measurable precipitation.

    Why
    • No precipitation at or above 50% chance within 48 hours
    • Current wind: 6 mph

  • Dog walk window

    Keep it short(Mixed)

    No hour in the next 12 hours falls in the 25–85° comfortable range with rain chance under 40°. It currently feels like 105°.

    Why
    • Pavement and paws: below 25° or above 85° feels-like is uncomfortable for most dogs

  • Cookout check

    Green light(Favourable)

    Between 4 PM and 9 PM: up to 0% rain chance, wind to 14 mph, feels like 102–109°.

    Why
    • Evening peak rain chance: 0%
    • Evening peak wind: 14 mph

  • Windows down?

    Keep them up(Unfavourable)

    Feels like 105°, 0% rain chance, wind 6 mph. Comfortable range used here: 58–84° with rain chance under 20% and wind under 18 mph.

    Why
    • Feels like 105°
    • Rain chance 0%
    • Wind 6 mph

  • Hair weather

    Behaving(Favourable)

    Relative humidity is 19% with a 54° dew point. Moisture in the air is what swells hair strands, so dew point matters more than temperature.

    Why
    • Humidity 19%
    • Dew point 54°

These are WeatherSignal calculations, not official forecasts or warnings. They never override guidance from your national weather service.

What this means

Generated from the forecast values above using fixed rules — not an AI guess.

  • A Extreme Heat Warning issued by NWS Phoenix AZ is active for Northwest Valley.
  • No significant precipitation is expected in the next 24 hours.
  • Heat builds to 110°F on Saturday.
  • UV index is very high today — limit midday sun exposure.

Next 24 hours

Will it rain during your commute? When does the storm arrive?

Hourly forecast for the next 24 hours
TimeConditionTempFeelsPrecip %AmountWindHumidity
7 PMMainly clear104°104°0%0.00″7 NW20%
8 PMPartly cloudy102°102°0%0.00″7 N21%
9 PMPartly cloudy102°102°0%0.00″3 N23%
10 PMPartly cloudy100°100°0%0.00″3 N23%
11 PMPartly cloudy99°99°0%0.00″7 WSW24%
12 AMOvercast98°98°0%0.00″7 W26%
1 AMPartly cloudy96°96°0%0.00″5 W29%
2 AMPartly cloudy95°95°0%0.00″5 W30%
3 AMPartly cloudy93°93°0%0.00″6 WSW32%
4 AMClear sky92°92°0%0.00″6 WSW34%
5 AMClear sky90°90°0%0.00″5 W37%
6 AMClear sky89°89°0%0.00″4 WNW38%
7 AMClear sky91°91°0%0.00″3 WSW36%
8 AMClear sky95°95°0%0.00″3 SSW31%
9 AMClear sky98°98°0%0.00″4 SW27%
10 AMClear sky102°102°0%0.00″4 WSW24%
11 AMClear sky105°105°0%0.00″4 WSW22%
12 PMClear sky107°107°0%0.00″5 WSW20%
1 PMMainly clear109°109°0%0.00″7 W18%
2 PMMainly clear110°110°0%0.00″9 W17%
3 PMMainly clear109°109°0%0.00″10 W18%
4 PMPartly cloudy109°109°0%0.00″9 W17%
5 PMPartly cloudy109°109°0%0.00″10 W18%
6 PMPartly cloudy107°107°0%0.00″14 W19%

7-day forecast

Confidence decreases the further out you look.

  • Today

    Clear sky

    110° / 89°

    Precip:
    0% · 0.00″
    Wind:
    10 mph
    UV:
    9.6
    Sun:
    11 PM–11 AM

  • Sun, Aug 30

    Clear sky

    109° / 86°

    Precip:
    0% · 0.00″
    Wind:
    14 mph
    UV:
    9.6
    Sun:
    11 PM–11 AM

  • Mon, Aug 31

    Clear sky

    103° / 84°

    Precip:
    0% · 0.00″
    Wind:
    11 mph
    UV:
    8.3
    Sun:
    11 PM–11 AM

  • Tue, Sep 1

    Clear sky

    93° / 79°

    Precip:
    0% · 0.00″
    Wind:
    10 mph
    UV:
    0.0
    Sun:
    11 PM–11 AM

  • Wed, Sep 2

    Clear sky

    99° / 84°

    Precip:
    0% · 0.00″
    Wind:
    5 mph
    UV:
    0.0
    Sun:
    11 PM–11 AM

    Lower confidence — long-range outlook, not a certainty.

  • Thu, Sep 3

    Clear sky

    103° / 85°

    Precip:
    0% · 0.00″
    Wind:
    6 mph
    UV:
    0.0
    Sun:
    11 PM–11 AM

    Lower confidence — long-range outlook, not a certainty.

  • Fri, Sep 4

    Clear sky

    105° / 87°

    Precip:
    0% · 0.00″
    Wind:
    6 mph
    UV:
    0.0
    Sun:
    11 PM–11 AM

    Lower confidence — long-range outlook, not a certainty.

Forecasts describe likely conditions, not guaranteed outcomes. Official warnings from your national weather service always take precedence over anything shown here.

Air quality

US EPA AQI · Moderate

AQI
54

Moderate

Primary
Ozone

Highest measured pollutant

PM2.5
10.2µg/m³
PM10
29.3µg/m³
Ozone
93.0µg/m³
Dust
38.0µg/m³

Unusually sensitive people should consider shortening intense outdoor activity.

Air-quality guidance comes from the published category definitions of the source scale. WeatherSignal does not provide medical advice.

Source updated: not provided · WeatherSignal checked: 2:20:37 AM

Source: Open-Meteo Air Quality (CAMS / US EPA scale)

Radar & storm tracking

Animated precipitation radar centred on this area.

Air quality detail

Pollutants, category, and official guidance.

Travel & outdoor planning

Rain-free windows, commute weather, best time outside.

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