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Current weather in San Luis is clear sky.

Where can I find the hourly weather forecast for San Luis?

This page shows hourly weather forecast for San Luis, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for San Luis updated regularly?

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

Now · 9:23 AM

San Luis Weather & Hourly Forecast

United States · Arizona · 85349

95°F

Sunny

Feels like: 100°F

💧 Humidity 49% 🌡 Pressure 29.88 inHg 💨 Wind 8 mph 👁 Visibility 28.2 mi ☁ Clouds 0% ☀️ UV index 2.5 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for San Luis

Today

10:00 AM

Sunny

100° 💧 None 💨 8 mph H 41%29.88 inHg

1:00 PM

Strong thunderstorm

108° 💧 None 💨 7 mph H 24%29.83 inHg

4:00 PM

Strong thunderstorm

109° 💧 0.000 in 💨 9 mph H 22%29.71 inHg

7:00 PM

Clear night

105° 💧 None 💨 9 mph H 24%29.71 inHg

10:00 PM

Clear night

95° 💧 None 💨 13 mph H 43%29.77 inHg

Tomorrow

1:00 AM

Mostly clear night

92° 💧 None 💨 10 mph H 55%29.77 inHg

4:00 AM

Clear night

89° 💧 None 💨 7 mph H 59%29.74 inHg

7:00 AM

Sunny

87° 💧 None 💨 9 mph H 70%29.77 inHg

10:00 AM

Sunny

98° 💧 None 💨 12 mph H 45%29.80 inHg

1:00 PM

Strong thunderstorm

105° 💧 0.000 in 💨 12 mph H 29%29.74 inHg

4:00 PM

Strong thunderstorm

104° 💧 0.000 in 💨 12 mph H 28%29.68 inHg

7:00 PM

Mostly clear night

97° 💧 None 💨 18 mph H 37%29.68 inHg

10:00 PM

Clear night

90° 💧 None 💨 13 mph H 60%29.74 inHg

Saturday

1:00 AM

Clear night

89° 💧 None 💨 13 mph H 65%29.74 inHg

4:00 AM

Clear night

87° 💧 None 💨 10 mph H 71%29.74 inHg

7:00 AM

Sunny

86° 💧 None 💨 11 mph H 71%29.80 inHg

Today

10:00 AM

Sunny

100° 💧 None 💨 8 mph H 41%29.88 inHg

11:00 AM

Sunny

103° 💧 None 💨 8 mph H 33%29.88 inHg

12:00 PM

Sunny

106° 💧 None 💨 8 mph H 27%29.85 inHg

1:00 PM

Strong thunderstorm

108° 💧 None 💨 7 mph H 24%29.83 inHg

2:00 PM

Strong thunderstorm

109° 💧 None 💨 7 mph H 23%29.77 inHg

3:00 PM

Strong thunderstorm

110° 💧 None 💨 8 mph H 22%29.74 inHg

4:00 PM

Strong thunderstorm

109° 💧 None 💨 9 mph H 22%29.71 inHg

5:00 PM

Strong thunderstorm

108° 💧 0.000 in 💨 9 mph H 22%29.71 inHg

6:00 PM

Sunny

107° 💧 None 💨 7 mph H 22%29.71 inHg

7:00 PM

Clear night

105° 💧 None 💨 9 mph H 24%29.71 inHg

8:00 PM

Clear night

102° 💧 None 💨 14 mph H 27%29.74 inHg

9:00 PM

Clear night

98° 💧 None 💨 15 mph H 35%29.77 inHg

10:00 PM

Clear night

95° 💧 None 💨 13 mph H 43%29.77 inHg

11:00 PM

Clear night

94° 💧 None 💨 11 mph H 49%29.77 inHg

Tomorrow

12:00 AM

Clear night

93° 💧 None 💨 11 mph H 53%29.77 inHg

1:00 AM

Mostly clear night

92° 💧 None 💨 10 mph H 55%29.77 inHg

2:00 AM

Clear night

91° 💧 None 💨 9 mph H 56%29.74 inHg

3:00 AM

Clear night

90° 💧 None 💨 8 mph H 57%29.74 inHg

4:00 AM

Clear night

89° 💧 None 💨 7 mph H 59%29.74 inHg

5:00 AM

Clear night

88° 💧 None 💨 6 mph H 62%29.74 inHg

6:00 AM

Clear night

87° 💧 None 💨 7 mph H 66%29.74 inHg

7:00 AM

Sunny

87° 💧 None 💨 9 mph H 70%29.77 inHg

8:00 AM

Sunny

90° 💧 None 💨 10 mph H 66%29.80 inHg

9:00 AM

Sunny

94° 💧 None 💨 11 mph H 55%29.80 inHg

10:00 AM

Sunny

98° 💧 None 💨 12 mph H 45%29.80 inHg

11:00 AM

Sunny

102° 💧 None 💨 12 mph H 38%29.80 inHg

12:00 PM

Strong thunderstorm

104° 💧 None 💨 12 mph H 32%29.77 inHg

1:00 PM

Strong thunderstorm

105° 💧 None 💨 12 mph H 29%29.74 inHg

2:00 PM

Strong thunderstorm

106° 💧 None 💨 13 mph H 28%29.71 inHg

3:00 PM

Mostly sunny

105° 💧 0.000 in 💨 13 mph H 28%29.68 inHg

4:00 PM

Strong thunderstorm

104° 💧 0.000 in 💨 12 mph H 28%29.68 inHg

5:00 PM

Partly cloudy

103° 💧 None 💨 14 mph H 31%29.65 inHg

6:00 PM

Mostly sunny

101° 💧 None 💨 16 mph H 33%29.65 inHg

7:00 PM

Mostly clear night

97° 💧 None 💨 18 mph H 37%29.68 inHg

8:00 PM

Clear night

93° 💧 None 💨 17 mph H 47%29.71 inHg

9:00 PM

Clear night

92° 💧 None 💨 15 mph H 55%29.74 inHg

10:00 PM

Clear night

90° 💧 None 💨 13 mph H 60%29.74 inHg

11:00 PM

Clear night

89° 💧 None 💨 12 mph H 64%29.74 inHg

Saturday

12:00 AM

Clear night

89° 💧 None 💨 13 mph H 65%29.74 inHg

1:00 AM

Clear night

89° 💧 None 💨 13 mph H 65%29.74 inHg

2:00 AM

Clear night

88° 💧 None 💨 12 mph H 68%29.74 inHg

3:00 AM

Clear night

87° 💧 None 💨 10 mph H 71%29.74 inHg

4:00 AM

Clear night

87° 💧 None 💨 10 mph H 71%29.74 inHg

5:00 AM

Clear night

86° 💧 None 💨 10 mph H 74%29.77 inHg

6:00 AM

Clear night

86° 💧 None 💨 11 mph H 76%29.77 inHg

7:00 AM

Sunny

86° 💧 None 💨 11 mph H 71%29.80 inHg

8:00 AM

Sunny

89° 💧 None 💨 13 mph H 62%29.83 inHg

9:00 AM

Sunny

92° 💧 None 💨 14 mph H 53%29.83 inHg

10:00 AM

Sunny

96° 💧 None 💨 14 mph H 45%29.83 inHg

11:00 AM

Sunny

99° 💧 None 💨 14 mph H 40%29.83 inHg

12:00 PM

Sunny

101° 💧 None 💨 14 mph H 38%29.80 inHg

1:00 PM

Strong thunderstorm

102° 💧 None 💨 14 mph H 36%29.80 inHg

2:00 PM

Strong thunderstorm

102° 💧 None 💨 13 mph H 36%29.77 inHg

3:00 PM

Strong thunderstorm

102° 💧 None 💨 12 mph H 35%29.74 inHg

4:00 PM

Strong thunderstorm

102° 💧 None 💨 11 mph H 37%29.74 inHg

5:00 PM

Sunny

101° 💧 None 💨 11 mph H 36%29.71 inHg

Sunday

2:00 AM

Mostly clear night

86° 💧 None 💨 9 mph H 67%29.74 inHg

5:00 AM

Clear night

84° 💧 None 💨 5 mph H 71%29.77 inHg

8:00 AM

Sunny

87° 💧 None 💨 8 mph H 64%29.80 inHg

11:00 AM

Sunny

99° 💧 None 💨 11 mph H 43%29.77 inHg

2:00 PM

Mostly sunny

104° 💧 None 💨 9 mph H 30%29.68 inHg

5:00 PM

Mostly sunny

102° 💧 None 💨 11 mph H 30%29.62 inHg

8:00 PM

Mostly clear night

95° 💧 None 💨 12 mph H 42%29.65 inHg

11:00 PM

Mostly clear night

89° 💧 None 💨 9 mph H 61%29.68 inHg

Monday

2:00 AM

Clear night

86° 💧 None 💨 9 mph H 70%29.68 inHg

5:00 AM

Clear night

84° 💧 None 💨 4 mph H 63%29.68 inHg

8:00 AM

Mostly sunny

87° 💧 None 💨 9 mph H 67%29.71 inHg

11:00 AM

Sunny

99° 💧 None 💨 11 mph H 35%29.71 inHg

2:00 PM

Sunny

105° 💧 None 💨 11 mph H 22%29.65 inHg

5:00 PM

Sunny

100° 💧 None 💨 14 mph H 28%29.59 inHg

8:00 PM

Clear night

94° 💧 None 💨 13 mph H 32%29.65 inHg

11:00 PM

Clear night

88° 💧 None 💨 12 mph H 55%29.71 inHg

Tuesday

2:00 AM

Clear night

86° 💧 None 💨 13 mph H 49%29.71 inHg

5:00 AM

Clear night

84° 💧 None 💨 8 mph H 61%29.74 inHg

8:00 AM

Mostly sunny

87° 💧 None 💨 10 mph H 76%29.80 inHg

11:00 AM

Sunny

96° 💧 None 💨 11 mph H 32%29.80 inHg

2:00 PM

Sunny

101° 💧 None 💨 12 mph H 27%29.74 inHg

5:00 PM

Sunny

100° 💧 None 💨 12 mph H 24%29.71 inHg

8:00 PM

Clear night

92° 💧 None 💨 14 mph H 37%29.74 inHg

11:00 PM

Clear night

87° 💧 None 💨 11 mph H 62%29.80 inHg

Wednesday

5:00 AM

Clear night

87° 💧 None 💨 13 mph H 62%29.83 inHg

11:00 AM

Partly cloudy

81° 💧 None 💨 5 mph H 82%29.85 inHg

5:00 PM

Mostly cloudy

95° 💧 None 💨 11 mph H 47%29.91 inHg

11:00 PM

Mostly clear night

100° 💧 None 💨 8 mph H 29%29.80 inHg

Thursday

5:00 AM

Mostly cloudy night

88° 💧 None 💨 6 mph H 43%29.88 inHg

11:00 AM

Mostly sunny

81° 💧 None 💨 4 mph H 65%29.88 inHg

5:00 PM

Mostly sunny

96° 💧 None 💨 5 mph H 35%29.94 inHg

11:00 PM

Clear night

104° 💧 None 💨 5 mph H 23%29.83 inHg

Friday

5:00 AM

Clear night

93° 💧 None 💨 8 mph H 33%29.88 inHg

11:00 AM

Sunny

87° 💧 None 💨 5 mph H 51%29.85 inHg

5:00 PM

Sunny

102° 💧 None 💨 4 mph H 23%29.91 inHg

11:00 PM

Mostly clear night

107° 💧 None 💨 6 mph H 20%29.74 inHg

Saturday

5:00 AM

Clear night

96° 💧 None 💨 7 mph H 33%29.80 inHg

11:00 AM

Sunny

89° 💧 None 💨 7 mph H 46%29.77 inHg

5:00 PM

Sunny

103° 💧 None 💨 8 mph H 29%29.80 inHg

11:00 PM

Clear night

107° 💧 None 💨 8 mph H 24%29.65 inHg

Sunday

5:00 AM

Clear night

93° 💧 None 💨 11 mph H 47%29.71 inHg

11:00 AM

Sunny

87° 💧 None 💨 10 mph H 64%29.68 inHg

5:00 PM

Mostly sunny

100° 💧 None 💨 13 mph H 39%29.74 inHg

11:00 PM

Clear night

102° 💧 None 💨 11 mph H 26%29.59 inHg

Monday

5:00 AM

Clear night

90° 💧 None 💨 11 mph H 18%29.68 inHg

11:00 AM

Sunny

81° 💧 None 💨 6 mph H 23%29.71 inHg

5:00 PM

Sunny

93° 💧 None 💨 7 mph H 14%29.74 inHg

11:00 PM

Clear night

99° 💧 None 💨 7 mph H 16%29.62 inHg

Tuesday

5:00 AM

Clear night

84° 💧 None 💨 6 mph H 29%29.74 inHg

11:00 AM

Mostly sunny

74° 💧 None 💨 11 mph H 41%29.77 inHg

5:00 PM

Sunny

87° 💧 None 💨 9 mph H 18%29.85 inHg

11:00 PM

Clear night

94° 💧 None 💨 3 mph H 15%29.77 inHg

Wednesday

5:00 AM

Clear night

80° 💧 None 💨 2 mph H 25%29.88 inHg

11:00 AM

Sunny

72° 💧 None 💨 7 mph H 47%29.91 inHg

5:00 PM

Sunny

88° 💧 None 💨 5 mph H 33%29.94 inHg

11:00 PM

Clear night

95° 💧 None 💨 7 mph H 12%29.83 inHg

Thursday

5:00 AM

Overcast night

82° 💧 None 💨 7 mph H 12%29.88 inHg

11:00 AM

Mostly cloudy

75° 💧 None 💨 7 mph H 25%29.83 inHg

5:00 PM

Sunny

94° 💧 None 💨 7 mph H 14%29.85 inHg

11:00 PM

Clear night

101° 💧 None 💨 5 mph H 13%29.71 inHg

In San Luis 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 San Luis

TomorrowTomorrow

Strong thunderstorm 108°/87° 💧 None 💨 15 mph

Saturday, Sep 12Sat Sep 12

Strong thunderstorm 103°/86° 💧 None 💨 18 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 104°/84° 💧 0.091 in 💨 11 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 105°/84° 💧 None 💨 12 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 101°/84° 💧 None 💨 14 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 100°/81° 💧 None 💨 14 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 100°/81° 💧 0.001 in 💨 11 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 104°/87° 💧 None 💨 8 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 107°/89° 💧 None 💨 7 mph

Sunday, Sep 20Sun Sep 20

Sunny 107°/87° 💧 0.001 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 102°/81° 💧 0.026 in 💨 13 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 99°/74° 💧 None 💨 11 mph

Wednesday, Sep 23Wed Sep 23

Sunny 94°/72° 💧 None 💨 9 mph

Thursday, Sep 24Thu Sep 24

Overcast 95°/75° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Sunny 101°/94° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in San Luis

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for San Luis

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 9,4µg/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 Fair 28,7µg/m³

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

O₃ Ozone Fair 69,9µg/m³

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

NO₂ Nitrogen dioxide Good 1,6µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in San Luis

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 9,1Very high 🙂Fair

Tomorrow UV 9,1Very high 🙂Fair

Saturday UV 9,1Very high 🙂Fair

Sunday UV 9,1Very high 🙂Fair

Monday UV 9,0Very high 🙂Fair

Tuesday UV 9,0Very high —Unavailable

Wednesday UV 9,0Very high —Unavailable

Hourly UV index today

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

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged 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 San Luis

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SAN LUIS, ARIZONA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:15 PM–4:57 AM

☁ Cloud cover 0% 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 80° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

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.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Forecast data for San Luis were last refreshed today at 9:23 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.