Williamson, AZ Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Williamson, AZ in one place.
Mostly clear, with a low around 48. Southeast wind around 2 mph.
Local Weather Overview
This forecast page for Williamson, 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 19, 2026 3:29 AM MST.
The active forecast window currently covers Oct 19 to Oct 25, 2026 for Williamson, AZ.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 19 to Oct 25, 2026
- Latest sync
- Oct 19, 2026 3:29 AM MST
- Forecast office
- FGZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Williamson
Tuesday looks like the warmest upcoming period in Williamson at 70 degrees F.
Friday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Thursday at about 14 to 21 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 19, 2026 3:29 AM MST
- Coverage
- 7 days
- Time zone
- America/Phoenix
- Forecast office
- FGZ
- Radar station
- KFSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers between 11am and 2pm, then a chance of showers and thunderstorms between 2pm and 5pm. Sunny. High near 69, with temperatures falling to around 64 in the afternoon. Southeast wind 2 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Mostly clear. Low around 48, with temperatures rising to around 50 overnight. Southeast wind around 5 mph.
Mostly sunny, with a high near 70. Southeast wind 3 to 12 mph, with gusts as high as 24 mph.
Showers and thunderstorms likely after 11pm. Mostly cloudy, with a low around 54. Southeast wind 6 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 67. Southeast wind 10 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 51. Southeast wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 61. South wind 14 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
A chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 40. South wind 3 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sunny, with a high near 58. South wind 3 to 7 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 38. Northwest wind 3 to 7 mph.
Sunny, with a high near 61. Northeast wind 3 to 7 mph.
Mostly clear, with a low around 39. Northeast wind 3 to 12 mph.
Sunny, with a high near 63. East wind 6 to 12 mph, with gusts as high as 18 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 19
|
Mostly Clear
|
48°F |
2 mph
SE
|
|
Monday
Oct 19
|
Chance Rain Showers
|
69°F |
2 to 8 mph
SE
|
|
Monday Night
Oct 19
|
Mostly Clear
|
48°F |
5 mph
SE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
70°F |
3 to 12 mph
SE
|
|
Tuesday Night
Oct 20
|
Showers And Thunderstorms Likely
|
54°F |
6 to 12 mph
SE
|
|
Wednesday
Oct 21
|
Showers And Thunderstorms
|
67°F |
10 to 15 mph
SE
|
|
Wednesday Night
Oct 21
|
Showers And Thunderstorms
|
51°F |
10 to 16 mph
SE
|
|
Thursday
Oct 22
|
Showers And Thunderstorms
|
61°F |
14 to 21 mph
S
|
|
Thursday Night
Oct 22
|
Chance Showers And Thunderstorms then Partly Cloudy
|
40°F |
3 to 12 mph
S
|
|
Friday
Oct 23
|
Sunny
|
58°F |
3 to 7 mph
S
|
|
Friday Night
Oct 23
|
Mostly Clear
|
38°F |
3 to 7 mph
NW
|
|
Saturday
Oct 24
|
Sunny
|
61°F |
3 to 7 mph
NE
|
|
Saturday Night
Oct 24
|
Mostly Clear
|
39°F |
3 to 12 mph
NE
|
|
Sunday
Oct 25
|
Sunny
|
63°F |
6 to 12 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Williamson.