San Tan Valley, AZ 85140 Weather

Pinal County1:49 PM MST33.19°N, 111.53°W

Current conditions

Sunny
77°
Sunny
Feels like 77°
High 78°·Low 56°
WindW 5 mph gusts 10 mph
Humidity31%
Dew point44°
Visibility10 mi
Cloud cover15%
UV index5 Moderate
Sunrise6:38 AM
Sunset5:44 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • This Afternoon

    Sunny. High near 78, with temperatures falling to around 76 in the afternoon. West wind around 5 mph.

  • Tonight

    Mostly clear. Low around 56, with temperatures rising to around 58 overnight. North northeast wind 0 to 5 mph.

  • Sunday

    Sunny. High near 81, with temperatures falling to around 79 in the afternoon. North wind 0 to 5 mph.

National Weather Service forecast updated 2 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 77°
  2. 2 PM Sunny 78°
  3. 3 PM Sunny 78°
  4. 4 PM Mostly Sunny 78°
  5. 5 PM Sunny 76°
  6. 6 PM Mostly Clear 73°
  7. 7 PM Clear 70°
  8. 8 PM Clear 68°
  9. 9 PM Clear 66°
  10. 10 PM Mostly Clear 64°
  11. 11 PM Mostly Clear 63°
  12. Sun12 AM Mostly Clear 62°
  13. 1 AM Clear 61°
  14. 2 AM Mostly Clear 60°
  15. 3 AM Mostly Clear 59°
  16. 4 AM Mostly Clear 58°
  17. 5 AM Mostly Clear 58°
  18. 6 AM Sunny 58°
  19. 7 AM Sunny 57°
  20. 8 AM Sunny 61°
  21. 9 AM Sunny 68°
  22. 10 AM Sunny 72°
  23. 11 AM Sunny 76°
  24. 12 PM Sunny 78°

Daily forecast

Details
  1. TodayOct 24 Sunny Sunny56°78°
  2. SunOct 25 Sunny Sunny55°81°
  3. MonOct 26 Sunny Sunny59°84°
  4. TueOct 27 Sunny Sunny60°85°
  5. WedOct 28 Mostly Sunny Mostly Sunny63°86°
  6. ThuOct 29 Partly Sunny Partly Sunny61%64°85°
  7. FriOct 30 Showers And Thunderstorms Likely Showers And Thunderstorms Likely65%61°77°
  8. SatOct 31 Heavy rain Heavy rain1.32 in59°67°
  9. SunNov 1 Heavy rain Heavy rain1.25 in56°62°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near San Tan Valley

More weather news

Air quality

27
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Gila River Indian Community, AZ reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 6:38 AM
Sunset 5:44 PM
Daylight 11 h 5 min (−1 min 53 s tomorrow)
Waxing Gibbous · 98% lit
Moonrise 4:37 PM Moonset 5:02 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Record high101° (1959)
Record low44° (1953)

Phoenix Williams Gateway Ap, records since 1949. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PSR, issued 3 hrs ago

Updated

18Z Aviation Discussion...

Key Messages

- Below normal temperatures will continue through the weekend before readings warm back closer to the seasonal average for the bulk of next week.

- Aside from a few showers mainly over the mountains of Arizona today, dry and tranquil weather conditions will grace the region through the middle of next week.

- A return to inclement weather with increased rainfall chances is possible towards the end of next week.

Short Term

Analysis early this morning showed a recently closed off low pressure system across the Southwest with a prominent vorticity center rounding the base of the low and moving east across SoCal with some light showers in Imperial County and southern Yuma County. This low will slowly track across AZ today through Sunday and exit through the Four Corners by Monday. As the cold-core pushes into AZ this afternoon it will be enough, combined with surface heating, to generate scattered showers and isolated storms across the northern AZ high terrain, including portions of Gila County. A few showers may also develop across Maricopa and Pinal Counties this afternoon as the vorticity center passes overhead, but with low mixing ratios around 4-6 g/kg any showers will likely be inconsequential and not lead to much in the way of rainfall. A brief thunderstorm cannot be completely ruled out as mid-level lapse rates increase to around 7 C/km, with chances better in the foothills north and northeast of Phoenix. Maybe even a cold-air funnel. H5 heights around 565-572 dam this weekend will keep temperatures 3-6 degrees below normal, with lower desert highs in the upper 70s to middle 80s and lows in the 50s to lower 60s. With light winds and the below normal temperatures it should be a comfortable Fall weekend.

Long Term

Gradually warming temperatures and overall tranquil weather is expected through at least the first half of the next workweek with quasi-zonal flow in the wake of the weekend low. An increase in H5 heights up to 579-582 dam by Monday will support the gradual warming of temperatures, with afternoon highs reaching the middle 80s and lows in the upper 50s to lower 60s across the lower deserts, which is right around normal for the time of year. Dry mostly clear skies will prevail under this pattern as well. Model uncertainty grows later next week as there are hints at some moisture return into the region from the southeast, then a potential atmospheric river approaching by next weekend. Either, or both of these moisture sources may eventually help to bring a return to rain chances at some point before the end of the month, but it is too early to have a good idea on timing and/or placement for any weather feature this far in advance.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.