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As of 10:59 MST

Weather in Williamson, AZ

89°Current weather

Williamson, Saturday, 8 August, 10:59

Clear. Feels like 88°. High 93°, low 73°.

Pressure29.91 inHg
Wind1 mph E
Humidity35%
Visibility6.2 mi
Dew point58°
Sun, 0997° / 70°0Mostly clear
97 °Mostly clear

Williamson, Sunday, 9 August

Mostly clear. High 97°, low 70°.

Pressure29.91 inHg
Wind4.4 mph SW
Humidity25%
Visibility6.2 mi
Dew point50°
Mon, 1092° / 64°0.45Heavy rain
92 °Heavy rain

Williamson, Monday, 10 August

Heavy rain. High 92°, low 64°.

Pressure29.91 inHg
Wind6.7 mph SW
Humidity29%
Visibility6.2 mi
Dew point54°
Tue, 1189° / 67°0.08Light rain
89 °Light rain

Williamson, Tuesday, 11 August

Light rain. High 89°, low 67°.

Pressure29.94 inHg
Wind6.8 mph W
Humidity33%
Visibility6.2 mi
Dew point54°
Wed, 1288° / 67°0.03Light rain
88 °Light rain

Williamson, Wednesday, 12 August

Light rain. High 88°, low 67°.

Pressure29.91 inHg
Wind17.9 mph W
Humidity40%
Visibility—
Dew point54°
Thu, 1382° / 67°0.05Light rain
82 °Light rain

Williamson, Thursday, 13 August

Light rain. High 82°, low 67°.

Pressure29.91 inHg
Wind13 mph SW
Humidity41%
Visibility—
Dew point53°
Fri, 1486° / 65°0Clear
86 °Clear

Williamson, Friday, 14 August

Clear. High 86°, low 65°.

Pressure30.00 inHg
Wind15.2 mph SW
Humidity36%
Visibility—
Dew point50°
Sat, 1589° / 68°0Partly cloudy
89 °Partly cloudy

Williamson, Saturday, 15 August

Partly cloudy. High 89°, low 68°.

Pressure30.00 inHg
Wind13.6 mph SW
Humidity27%
Visibility—
Dew point45°
Sun, 1689° / 74°0Overcast
89 °Overcast

Williamson, Sunday, 16 August

Overcast. High 89°, low 74°.

Pressure30.03 inHg
Wind14 mph E
Humidity29%
Visibility—
Dew point48°
Mon, 1788° / 69°0.17Rain
88 °Rain

Williamson, Monday, 17 August

Rain. High 88°, low 69°.

Pressure30.06 inHg
Wind6.3 mph NW
Humidity35%
Visibility—
Dew point51°
Tue, 1889° / 67°0.15Light rain
89 °Light rain

Williamson, Tuesday, 18 August

Light rain. High 89°, low 67°.

Pressure30.00 inHg
Wind22 mph NW
Humidity39%
Visibility—
Dew point54°
Wed, 1985° / 67°0.3Rain
85 °Rain

Williamson, Wednesday, 19 August

Rain. High 85°, low 67°.

Pressure29.97 inHg
Wind13.3 mph N
Humidity44%
Visibility—
Dew point55°
Thu, 2089° / 66°0.01Light rain
89 °Light rain

Williamson, Thursday, 20 August

Light rain. High 89°, low 66°.

Pressure30.00 inHg
Wind11.5 mph SW
Humidity33%
Visibility—
Dew point49°
Fri, 2187° / 67°0.17Light rain
87 °Light rain

Williamson, Friday, 21 August

Light rain. High 87°, low 67°.

Pressure30.03 inHg
Wind10.4 mph N
Humidity35%
Visibility—
Dew point52°
Sat, 2291° / 67°0Overcast
91 °Overcast

Williamson, Saturday, 22 August

Overcast. High 91°, low 67°.

Pressure30.00 inHg
Wind14.6 mph W
Humidity34%
Visibility—
Dew point51°
Sun, 2390° / 72°0.01Light rain
90 °Light rain

Williamson, Sunday, 23 August

Light rain. High 90°, low 72°.

Pressure29.94 inHg
Wind13.8 mph W
Humidity29%
Visibility—
Dew point49°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Williamson, AZ are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Williamson, AZ since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.