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As of 01:14 PDT

Weather in Guernsey Mill, CA

70°Current weather

Guernsey Mill, Sunday, 9 August, 01:14

Clear. Feels like 68°. High 95°, low 64°.

Pressure29.94 inHg
Wind6.2 mph NE
Humidity37%
Visibility6.2 mi
Dew point41°
Mon, 1094° / 65°0Overcast
94 °Overcast

Guernsey Mill, Monday, 10 August

Overcast. High 94°, low 65°.

Pressure29.88 inHg
Wind7.9 mph W
Humidity13%
Visibility6.2 mi
Dew point35°
Tue, 1191° / 66°0Overcast
91 °Overcast

Guernsey Mill, Tuesday, 11 August

Overcast. High 91°, low 66°.

Pressure29.91 inHg
Wind6.9 mph W
Humidity14%
Visibility6.2 mi
Dew point35°
Wed, 1287° / 65°0Overcast
87 °Overcast

Guernsey Mill, Wednesday, 12 August

Overcast. High 87°, low 65°.

Pressure29.85 inHg
Wind9.4 mph W
Humidity17%
Visibility6.2 mi
Dew point39°
Thu, 1384° / 61°0Clear
84 °Clear

Guernsey Mill, Thursday, 13 August

Clear. High 84°, low 61°.

Pressure29.85 inHg
Wind11.7 mph NW
Humidity18%
Visibility—
Dew point32°
Fri, 1485° / 58°0Partly cloudy
85 °Partly cloudy

Guernsey Mill, Friday, 14 August

Partly cloudy. High 85°, low 58°.

Pressure29.94 inHg
Wind9.8 mph W
Humidity19%
Visibility—
Dew point31°
Sat, 1567° / 59°0.06Light rain
67 °Light rain

Guernsey Mill, Saturday, 15 August

Light rain. High 67°, low 59°.

Pressure30.09 inHg
Wind4.8 mph NE
Humidity48%
Visibility—
Dew point42°
Sun, 1681° / 57°0Overcast
81 °Overcast

Guernsey Mill, Sunday, 16 August

Overcast. High 81°, low 57°.

Pressure30.06 inHg
Wind11.2 mph W
Humidity37%
Visibility—
Dew point46°
Mon, 1781° / 56°0Mostly clear
81 °Mostly clear

Guernsey Mill, Monday, 17 August

Mostly clear. High 81°, low 56°.

Pressure30.06 inHg
Wind10.8 mph NW
Humidity25%
Visibility—
Dew point36°
Tue, 1880° / 56°0Overcast
80 °Overcast

Guernsey Mill, Tuesday, 18 August

Overcast. High 80°, low 56°.

Pressure30.00 inHg
Wind9 mph W
Humidity24%
Visibility—
Dew point34°
Wed, 1983° / 57°0Overcast
83 °Overcast

Guernsey Mill, Wednesday, 19 August

Overcast. High 83°, low 57°.

Pressure29.94 inHg
Wind8.8 mph W
Humidity24%
Visibility—
Dew point35°
Thu, 2084° / 59°0Clear
84 °Clear

Guernsey Mill, Thursday, 20 August

Clear. High 84°, low 59°.

Pressure29.97 inHg
Wind10.4 mph W
Humidity25%
Visibility—
Dew point38°
Fri, 2183° / 58°0Partly cloudy
83 °Partly cloudy

Guernsey Mill, Friday, 21 August

Partly cloudy. High 83°, low 58°.

Pressure29.94 inHg
Wind11 mph W
Humidity26%
Visibility—
Dew point38°
Sat, 2284° / 59°0Clear
84 °Clear

Guernsey Mill, Saturday, 22 August

Clear. High 84°, low 59°.

Pressure29.94 inHg
Wind9.4 mph W
Humidity19%
Visibility—
Dew point32°
Sun, 2385° / 59°0Clear
85 °Clear

Guernsey Mill, Sunday, 23 August

Clear. High 85°, low 59°.

Pressure29.94 inHg
Wind9.2 mph W
Humidity20%
Visibility—
Dew point34°
Mon, 2487° / 60°0Clear
87 °Clear

Guernsey Mill, Monday, 24 August

Clear. High 87°, low 60°.

Pressure29.88 inHg
Wind8.9 mph W
Humidity17%
Visibility—
Dew point31°

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 Guernsey Mill, CA 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 Guernsey Mill, CA 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.