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Current weather in Poston is broken clouds.

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Weather data for Poston is updated regularly with the latest available observations and forecasts.

Now · 9:16 AM

Poston Weather & Hourly Forecast

United States · Arizona · 85371

99°F

Mostly cloudy

Feels like: 101°F

💧 Humidity 32% 🌡 Pressure 29.85 inHg 💨 Wind 5 mph 👁 Visibility 33.1 mi ☁ Clouds 76% ☀️ UV index 2.5 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Poston

Today

10:00 AM

Mostly sunny

104° 💧 None 💨 4 mph H 25%29.85 inHg

1:00 PM

Strong thunderstorm

112° 💧 None 💨 5 mph H 17%29.77 inHg

4:00 PM

Sunny

114° 💧 None 💨 9 mph H 15%29.65 inHg

7:00 PM

Clear night

108° 💧 0.000 in 💨 11 mph H 18%29.65 inHg

10:00 PM

Clear night

103° 💧 None 💨 9 mph H 21%29.71 inHg

Tomorrow

1:00 AM

Mostly clear night

98° 💧 None 💨 11 mph H 29%29.71 inHg

4:00 AM

Partly cloudy night

93° 💧 None 💨 11 mph H 34%29.71 inHg

7:00 AM

Sunny

91° 💧 None 💨 8 mph H 39%29.74 inHg

10:00 AM

Sunny

103° 💧 None 💨 9 mph H 24%29.77 inHg

1:00 PM

Sunny

109° 💧 None 💨 9 mph H 18%29.68 inHg

4:00 PM

Sunny

111° 💧 None 💨 13 mph H 15%29.59 inHg

7:00 PM

Clear night

106° 💧 None 💨 11 mph H 16%29.62 inHg

10:00 PM

Clear night

98° 💧 None 💨 18 mph H 35%29.71 inHg

Saturday

1:00 AM

Clear night

92° 💧 None 💨 10 mph H 43%29.74 inHg

4:00 AM

Clear night

88° 💧 None 💨 4 mph H 49%29.77 inHg

7:00 AM

Sunny

87° 💧 None 💨 3 mph H 49%29.80 inHg

Today

10:00 AM

Mostly sunny

104° 💧 None 💨 4 mph H 25%29.85 inHg

11:00 AM

Sunny

107° 💧 None 💨 4 mph H 21%29.83 inHg

12:00 PM

Sunny

110° 💧 None 💨 4 mph H 18%29.83 inHg

1:00 PM

Strong thunderstorm

112° 💧 None 💨 5 mph H 17%29.77 inHg

2:00 PM

Strong thunderstorm

113° 💧 None 💨 6 mph H 15%29.74 inHg

3:00 PM

Sunny

114° 💧 None 💨 7 mph H 15%29.68 inHg

4:00 PM

Sunny

114° 💧 None 💨 9 mph H 15%29.65 inHg

5:00 PM

Sunny

112° 💧 None 💨 11 mph H 15%29.65 inHg

6:00 PM

Sunny

111° 💧 None 💨 11 mph H 16%29.65 inHg

7:00 PM

Clear night

108° 💧 0.000 in 💨 11 mph H 18%29.65 inHg

8:00 PM

Clear night

106° 💧 None 💨 13 mph H 19%29.68 inHg

9:00 PM

Clear night

105° 💧 None 💨 11 mph H 20%29.71 inHg

10:00 PM

Clear night

103° 💧 None 💨 9 mph H 21%29.71 inHg

11:00 PM

Clear night

101° 💧 None 💨 9 mph H 23%29.71 inHg

Tomorrow

12:00 AM

Clear night

100° 💧 None 💨 12 mph H 27%29.71 inHg

1:00 AM

Mostly clear night

98° 💧 None 💨 11 mph H 29%29.71 inHg

2:00 AM

Mostly clear night

96° 💧 None 💨 13 mph H 30%29.71 inHg

3:00 AM

Mostly clear night

95° 💧 None 💨 12 mph H 31%29.71 inHg

4:00 AM

Partly cloudy night

93° 💧 None 💨 11 mph H 34%29.71 inHg

5:00 AM

Clear night

92° 💧 None 💨 9 mph H 37%29.71 inHg

6:00 AM

Mostly clear night

91° 💧 None 💨 8 mph H 39%29.74 inHg

7:00 AM

Sunny

91° 💧 None 💨 8 mph H 39%29.74 inHg

8:00 AM

Sunny

95° 💧 None 💨 8 mph H 35%29.77 inHg

9:00 AM

Sunny

99° 💧 None 💨 9 mph H 29%29.77 inHg

10:00 AM

Sunny

103° 💧 None 💨 9 mph H 24%29.77 inHg

11:00 AM

Sunny

106° 💧 None 💨 8 mph H 20%29.77 inHg

12:00 PM

Sunny

108° 💧 None 💨 8 mph H 19%29.74 inHg

1:00 PM

Sunny

109° 💧 None 💨 9 mph H 18%29.68 inHg

2:00 PM

Sunny

111° 💧 None 💨 10 mph H 16%29.65 inHg

3:00 PM

Sunny

111° 💧 None 💨 11 mph H 15%29.62 inHg

4:00 PM

Sunny

111° 💧 None 💨 13 mph H 15%29.59 inHg

5:00 PM

Sunny

109° 💧 None 💨 14 mph H 16%29.59 inHg

6:00 PM

Sunny

108° 💧 None 💨 14 mph H 16%29.59 inHg

7:00 PM

Clear night

106° 💧 None 💨 11 mph H 16%29.62 inHg

8:00 PM

Clear night

103° 💧 None 💨 17 mph H 24%29.62 inHg

9:00 PM

Clear night

100° 💧 None 💨 15 mph H 31%29.68 inHg

10:00 PM

Clear night

98° 💧 None 💨 18 mph H 35%29.71 inHg

11:00 PM

Clear night

96° 💧 None 💨 16 mph H 36%29.71 inHg

Saturday

12:00 AM

Clear night

94° 💧 None 💨 13 mph H 39%29.74 inHg

1:00 AM

Clear night

92° 💧 None 💨 10 mph H 43%29.74 inHg

2:00 AM

Clear night

91° 💧 None 💨 6 mph H 46%29.74 inHg

3:00 AM

Clear night

89° 💧 None 💨 4 mph H 48%29.74 inHg

4:00 AM

Clear night

88° 💧 None 💨 4 mph H 49%29.77 inHg

5:00 AM

Clear night

88° 💧 None 💨 3 mph H 50%29.77 inHg

6:00 AM

Clear night

86° 💧 None 💨 2 mph H 51%29.77 inHg

7:00 AM

Sunny

87° 💧 None 💨 3 mph H 49%29.80 inHg

8:00 AM

Sunny

92° 💧 None 💨 5 mph H 43%29.83 inHg

9:00 AM

Sunny

95° 💧 None 💨 7 mph H 40%29.83 inHg

10:00 AM

Sunny

98° 💧 None 💨 8 mph H 36%29.83 inHg

11:00 AM

Sunny

101° 💧 None 💨 9 mph H 33%29.80 inHg

12:00 PM

Strong thunderstorm

104° 💧 None 💨 10 mph H 29%29.80 inHg

1:00 PM

Strong thunderstorm

105° 💧 0.000 in 💨 11 mph H 27%29.77 inHg

2:00 PM

Strong thunderstorm

106° 💧 0.001 in 💨 11 mph H 28%29.74 inHg

3:00 PM

Strong thunderstorm

106° 💧 None 💨 11 mph H 27%29.71 inHg

4:00 PM

Strong thunderstorm

106° 💧 None 💨 11 mph H 26%29.68 inHg

5:00 PM

Strong thunderstorm

106° 💧 0.000 in 💨 12 mph H 24%29.68 inHg

Sunday

2:00 AM

Clear night

89° 💧 None 💨 8 mph H 45%29.74 inHg

5:00 AM

Partly cloudy night

86° 💧 None 💨 4 mph H 47%29.77 inHg

8:00 AM

Sunny

89° 💧 None 💨 4 mph H 43%29.80 inHg

11:00 AM

Mostly sunny

100° 💧 None 💨 9 mph H 28%29.77 inHg

2:00 PM

Mostly sunny

105° 💧 None 💨 11 mph H 23%29.68 inHg

5:00 PM

Sunny

104° 💧 None 💨 11 mph H 23%29.59 inHg

8:00 PM

Clear night

99° 💧 None 💨 11 mph H 28%29.62 inHg

11:00 PM

Clear night

95° 💧 None 💨 9 mph H 37%29.68 inHg

Monday

2:00 AM

Clear night

90° 💧 None 💨 7 mph H 47%29.68 inHg

5:00 AM

Mostly clear night

86° 💧 None 💨 4 mph H 52%29.68 inHg

8:00 AM

Sunny

89° 💧 None 💨 3 mph H 42%29.74 inHg

11:00 AM

Sunny

99° 💧 None 💨 7 mph H 29%29.71 inHg

2:00 PM

Mostly sunny

106° 💧 None 💨 11 mph H 22%29.62 inHg

5:00 PM

Mostly sunny

104° 💧 None 💨 12 mph H 22%29.59 inHg

8:00 PM

Clear night

99° 💧 None 💨 10 mph H 26%29.62 inHg

11:00 PM

Clear night

93° 💧 None 💨 12 mph H 29%29.71 inHg

Tuesday

2:00 AM

Clear night

87° 💧 None 💨 6 mph H 38%29.71 inHg

5:00 AM

Clear night

83° 💧 None 💨 2 mph H 40%29.77 inHg

8:00 AM

Sunny

87° 💧 None 💨 4 mph H 36%29.83 inHg

11:00 AM

Sunny

96° 💧 None 💨 9 mph H 37%29.83 inHg

2:00 PM

Mostly sunny

103° 💧 None 💨 11 mph H 24%29.74 inHg

5:00 PM

Sunny

102° 💧 None 💨 10 mph H 24%29.68 inHg

8:00 PM

Clear night

96° 💧 None 💨 9 mph H 26%29.74 inHg

11:00 PM

Clear night

91° 💧 None 💨 8 mph H 30%29.80 inHg

Wednesday

5:00 AM

Clear night

90° 💧 None 💨 9 mph H 35%29.83 inHg

11:00 AM

Sunny

80° 💧 None 💨 2 mph H 51%29.85 inHg

5:00 PM

Mostly cloudy

95° 💧 None 💨 5 mph H 34%29.94 inHg

11:00 PM

Mostly cloudy night

101° 💧 None 💨 3 mph H 26%29.80 inHg

Thursday

5:00 AM

Mostly cloudy night

92° 💧 None 💨 1 mph H 35%29.88 inHg

11:00 AM

Mostly cloudy

85° 💧 None 💨 1 mph H 48%29.91 inHg

5:00 PM

Sunny

101° 💧 None 💨 3 mph H 26%29.94 inHg

11:00 PM

Mostly clear night

106° 💧 None 💨 4 mph H 20%29.80 inHg

Friday

5:00 AM

Clear night

95° 💧 None 💨 1 mph H 29%29.85 inHg

11:00 AM

Sunny

87° 💧 None 💨 0 mph H 39%29.88 inHg

5:00 PM

Sunny

102° 💧 None 💨 6 mph H 27%29.91 inHg

11:00 PM

Mostly clear night

106° 💧 None 💨 7 mph H 19%29.74 inHg

Saturday

5:00 AM

Clear night

96° 💧 None 💨 1 mph H 26%29.80 inHg

11:00 AM

Sunny

89° 💧 None 💨 2 mph H 37%29.80 inHg

5:00 PM

Sunny

104° 💧 None 💨 6 mph H 25%29.80 inHg

11:00 PM

Mostly clear night

107° 💧 None 💨 8 mph H 21%29.65 inHg

Sunday

5:00 AM

Partly cloudy night

97° 💧 None 💨 12 mph H 30%29.71 inHg

11:00 AM

Mostly sunny

80° 💧 None 💨 3 mph H 87%29.74 inHg

5:00 PM

Mostly sunny

97° 💧 None 💨 12 mph H 35%29.74 inHg

11:00 PM

Partly cloudy night

99° 💧 None 💨 12 mph H 29%29.59 inHg

Monday

5:00 AM

Clear night

84° 💧 None 💨 10 mph H 61%29.71 inHg

11:00 AM

Sunny

80° 💧 None 💨 6 mph H 70%29.68 inHg

5:00 PM

Sunny

93° 💧 None 💨 13 mph H 37%29.74 inHg

11:00 PM

Clear night

97° 💧 None 💨 11 mph H 10%29.59 inHg

Tuesday

5:00 AM

Mostly clear night

85° 💧 None 💨 4 mph H 15%29.71 inHg

11:00 AM

Sunny

77° 💧 None 💨 11 mph H 71%29.77 inHg

5:00 PM

Sunny

90° 💧 None 💨 14 mph H 37%29.83 inHg

11:00 PM

Clear night

94° 💧 None 💨 10 mph H 16%29.74 inHg

Wednesday

5:00 AM

Clear night

79° 💧 None 💨 1 mph H 21%29.88 inHg

11:00 AM

Sunny

71° 💧 None 💨 1 mph H 30%29.91 inHg

5:00 PM

Sunny

87° 💧 None 💨 1 mph H 20%29.97 inHg

11:00 PM

Clear night

94° 💧 None 💨 3 mph H 16%29.85 inHg

Thursday

5:00 AM

Mostly clear night

80° 💧 None 💨 2 mph H 21%29.88 inHg

11:00 AM

Mostly cloudy

74° 💧 None 💨 3 mph H 24%29.85 inHg

5:00 PM

Sunny

93° 💧 None 💨 4 mph H 24%29.85 inHg

11:00 PM

Clear night

99° 💧 None 💨 5 mph H 21%29.71 inHg

In Poston and, more broadly, across the state of Arizona: This morning will start with mostly sunny skies and a few clouds, with temperatures already rising into the mid-80s. By the afternoon, expect very hot conditions, with highs reaching between 82 and 102 degrees Fahrenheit. No precipitation is forecasted, so the day should remain dry. Winds will be moderate from the southwest, with sustained speeds up to 13 mph and gusts around 12 mph, providing some relief from the heat at times. It will be important to stay hydrated and take precautions against the high temperatures, especially during the peak afternoon hours. Temperatures are expected to remain high into the evening, so plan accordingly to stay comfortable and safe.

15-Day Weather Outlook for Poston

TomorrowTomorrow

Mostly sunny 112°/91° 💧 None 💨 13 mph

Saturday, Sep 12Sat Sep 12

Strong thunderstorm 109°/86° 💧 None 💨 18 mph

Sunday, Sep 13Sun Sep 13

Strong thunderstorm 106°/86° 💧 0.003 in 💨 12 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 106°/86° 💧 None 💨 11 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 104°/83° 💧 None 💨 12 mph

Wednesday, Sep 16Wed Sep 16

Sunny 102°/80° 💧 0.003 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 101°/85° 💧 None 💨 5 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 106°/87° 💧 None 💨 4 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 106°/89° 💧 0.002 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 107°/80° 💧 0.183 in 💨 12 mph

Monday, Sep 21Mon Sep 21

Partly cloudy 99°/80° 💧 0.081 in 💨 12 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 97°/77° 💧 None 💨 13 mph

Wednesday, Sep 23Wed Sep 23

Sunny 94°/71° 💧 0.001 in 💨 14 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 94°/74° 💧 None 💨 3 mph

Friday, Sep 25Fri Sep 25

Sunny 99°/93° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Poston

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Poston

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 10:00 AM

PM2.5 Fine particles Fair 13,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Moderate 66,3µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 52,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 8,3µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Poston

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 8,9Very high 😐Moderate

Tomorrow UV 8,7Very high ⚠️Very poor

Saturday UV 8,9Very high 😷Poor

Sunday UV 9,0Very high 😐Moderate

Monday UV 9,0Very high 😐Moderate

Tuesday UV 9,0Very high —Unavailable

Wednesday UV 9,0Very high —Unavailable

Hourly UV index today

10:00 AMUV 4,9 11:00 AMUV 7,2 12:00 PMUV 8,7 1:00 PMUV 8,9 2:00 PMUV 7,7 3:00 PMUV 5,5 4:00 PMUV 3,1 5:00 PMUV 1,2 6:00 PMUV 0,3 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

High heat

Stay hydrated and avoid intense exercise during the hottest part of the day.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Poston

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · POSTON, ARIZONA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

96/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 8:16 PM–4:53 AM

☁ Cloud cover 6% Real hourly forecast for the best viewing hour.

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 37° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min62%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Poston were last refreshed today at 9:16 AM. The current forecast period extends through 12/09/2026 at 7:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.