San Tan Valley, AZ Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for San Tan Valley, AZ in one place.
A chance of rain showers before 5pm. Partly sunny. High near 75, with temperatures falling to around 72 in the afternoon. West wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for San Tan Valley, AZ is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 13, 2026 4:51 PM MST.
The active forecast window currently covers Oct 13 to Oct 19, 2026 for San Tan Valley, AZ.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 4:51 PM MST
- Forecast office
- PSR
- Source
- NOAA / NWS
Daily Outlook
This Week in San Tan Valley
Monday looks like the warmest upcoming period in San Tan Valley at 85 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Friday at about 15 to 25 mph E.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 4:51 PM MST
- Coverage
- 8 days
- Time zone
- America/Phoenix
- Forecast office
- PSR
- Radar station
- KIWA
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 54. West southwest wind 0 to 5 mph.
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. South wind 0 to 5 mph.
Mostly clear, with a low around 52. Northeast wind 0 to 5 mph.
Sunny, with a high near 84. Northeast wind 0 to 5 mph.
Mostly clear, with a low around 65. East northeast wind 5 to 15 mph, with gusts as high as 30 mph.
Patchy blowing dust between 9am and 5pm. Mostly sunny, with a high near 82. East wind 15 to 25 mph, with gusts as high as 40 mph.
A slight chance of rain showers after 5am. Partly cloudy, with a low around 61. East wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 5pm. Mostly sunny, with a high near 75. East wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 61. East northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Sunny, with a high near 82. East northeast wind 5 to 10 mph.
Mostly clear, with a low around 62. Northeast wind around 5 mph.
Sunny, with a high near 85. South southeast wind 5 to 10 mph.
Mostly clear, with a low around 64. Southeast wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 13
|
Chance Rain Showers
|
75°F |
10 mph
W
|
|
Tonight
Oct 13
|
Partly Cloudy
|
54°F |
0 to 5 mph
WSW
|
|
Wednesday
Oct 14
|
Sunny
|
74°F |
0 to 5 mph
S
|
|
Wednesday Night
Oct 14
|
Mostly Clear
|
52°F |
0 to 5 mph
NE
|
|
Thursday
Oct 15
|
Sunny
|
84°F |
0 to 5 mph
NE
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
65°F |
5 to 15 mph
ENE
|
|
Friday
Oct 16
|
Patchy Blowing Dust
|
82°F |
15 to 25 mph
E
|
|
Friday Night
Oct 16
|
Partly Cloudy then Slight Chance Rain Showers
|
61°F |
20 mph
E
|
|
Saturday
Oct 17
|
Slight Chance Rain Showers
|
75°F |
15 to 25 mph
E
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
61°F |
10 to 15 mph
ENE
|
|
Sunday
Oct 18
|
Sunny
|
82°F |
5 to 10 mph
ENE
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
62°F |
5 mph
NE
|
|
Monday
Oct 19
|
Sunny
|
85°F |
5 to 10 mph
SSE
|
|
Monday Night
Oct 19
|
Mostly Clear
|
64°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around San Tan Valley.