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Weather in San Tan Valley, United States 🇺🇸

Weather Forecast in San Tan Valley

Current Weather in San Tan Valley

Flood Watch issued July 19 at 11:13PM MST until July 21 at 12:00AM MST by NWS Tucson AZ
Clear
32°C
Feels like 32°C. Clear.
🌬️ 4 km/h WSW
💧 45% Humidity
🧭 1011 hPa
👁️ 16.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 14°C
🌅 Sunrise: 05:31 AM
🌇 Sunset: 07:33 PM
Map Overlays:

In San Tan Valley right now it is 32°C and clear, feeling like 32°C. Humidity is 45% with winds around 4 km/h, and the UV index is 0 (low). Over the next few days, temperatures in San Tan Valley range from about 27°C to 39°C. ⚠️ Flood Watch issued July 19 at 11:13PM MST until July 21 at 12:00AM MST by NWS Tucson AZ

Hourly Forecast for San Tan Valley

02:00
Clear
31°
1%
03:00
Clear
29°
1%
04:00
Clear
28°
2%
05:00
Clear
28°
2%
06:00
Sunny
27°
3%
07:00
Sunny
27°
3%
08:00
Sunny
29°
2%
09:00
Sunny
31°
1%
10:00
Sunny
34°
1%
11:00
Sunny
38°
0%
12:00
Sunny
35°
1%
13:00
Sunny
36°
1%
14:00
Sunny
36°
1%
15:00
Sunny
37°
1%
16:00
Sunny
37°
1%
17:00
Patchy rain nearby
38°
18%
18:00
Patchy rain nearby
37°
17%
19:00
Patchy rain nearby
36°
17%
20:00
Clear
33°
2%
21:00
Clear
30°
2%
22:00
Patchy rain nearby
29°
17%
23:00
Clear
29°
3%
00:00
Patchy rain nearby
30°
10%
01:00
Clear
30°
3%

14-Day Forecast for San Tan Valley

Mon, Jul 20
Sunny Sunny
38° / 27°
Tue, Jul 21
Patchy rain nearby Patchy rain nearby
36° / 28°
Wed, Jul 22
Sunny Sunny
39° / 29°
Thu, Jul 23
Sunny Sunny
43° / 32°
Fri, Jul 24
Sunny Sunny
44° / 31°
Sat, Jul 25
Sunny Sunny
44° / 33°
Sun, Jul 26
Sunny Sunny
44° / 33°
Mon, Jul 27
Sunny Sunny
42° / 33°
Tue, Jul 28
Sunny Sunny
41° / 30°
Wed, Jul 29
Sunny Sunny
40° / 29°
Thu, Jul 30
Sunny Sunny
40° / 31°
Fri, Jul 31
Sunny Sunny
41° / 32°
Sat, Aug 01
Sunny Sunny
43° / 32°
Sun, Aug 02
Sunny Sunny
42° / 28°

Additional Forecasts for San Tan Valley

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 121.0 μg/m³
O₃ (Ozone) 38.0 μg/m³
NO₂ (Nitrogen Dioxide) 7.8 μg/m³
SO₂ (Sulphur Dioxide) 0.5 μg/m³
PM2.5 (Fine particles) 9.8 μg/m³
PM10 (Coarse particles) 22.0 μg/m³

Historical Weather

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Best Time to Be Outside in San Tan Valley Today

The most comfortable window in San Tan Valley today looks like 06:00 to 08:00, when it is around 28°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in San Tan Valley

What is the temperature in San Tan Valley right now?

The current temperature in San Tan Valley is 32°C (89°F), clear (feels like 32°C).

What's the weather like in San Tan Valley right now?

Conditions in San Tan Valley right now: Clear, humidity 45%, wind 4 km/h WSW.

What is today's forecast for San Tan Valley?

Today in San Tan Valley: high 38°C, low 27°C, sunny. Chance of rain: 36%.

What is the 7-day weather forecast for San Tan Valley?

Daily highs and lows for San Tan Valley:

  • 2026-07-20: 38°C / 27°C
  • 2026-07-21: 36°C / 28°C
  • 2026-07-22: 39°C / 29°C
  • 2026-07-23: 43°C / 32°C
  • 2026-07-24: 44°C / 31°C
  • 2026-07-25: 44°C / 33°C
  • 2026-07-26: 44°C / 33°C
Is it going to rain in San Tan Valley today?

There is a 36% chance of rain in San Tan Valley today. Total expected precipitation: 0.64 mm.

What is the wind speed in San Tan Valley right now?

Wind in San Tan Valley is currently 4 km/h (2 mph) from the WSW.

What is the UV index in San Tan Valley right now?

The UV index in San Tan Valley is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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