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As of 21:35 EDT

Weather in Castine, ME

68°Current weather

Castine, Saturday, 8 August, 21:35

Overcast. Feels like 69°. High 81°, low 68°.

Pressure29.88 inHg
Wind2 mph S
Humidity96%
Visibility1.7 mi
Dew point67°
Sun, 0986° / 66°0Partly cloudy
86 °Partly cloudy

Castine, Sunday, 9 August

Partly cloudy. High 86°, low 66°.

Pressure29.83 inHg
Wind7.2 mph SW
Humidity61%
Visibility4.7 mi
Dew point64°
Mon, 1082° / 62°0.13Rain
82 °Rain

Castine, Monday, 10 August

Rain. High 82°, low 62°.

Pressure29.94 inHg
Wind6 mph S
Humidity49%
Visibility6.2 mi
Dew point56°
Tue, 1178° / 61°0.19Light rain
78 °Light rain

Castine, Tuesday, 11 August

Light rain. High 78°, low 61°.

Pressure29.68 inHg
Wind4.6 mph SW
Humidity64%
Visibility5.0 mi
Dew point62°
Wed, 1270° / 59°0Overcast
70 °Overcast

Castine, Wednesday, 12 August

Overcast. High 70°, low 59°.

Pressure29.77 inHg
Wind13 mph S
Humidity71%
Visibility6.2 mi
Dew point57°
Thu, 1372° / 58°0.22Light rain
72 °Light rain

Castine, Thursday, 13 August

Light rain. High 72°, low 58°.

Pressure29.68 inHg
Wind8.5 mph S
Humidity98%
Visibility—
Dew point62°
Fri, 1468° / 56°0Mostly clear
68 °Mostly clear

Castine, Friday, 14 August

Mostly clear. High 68°, low 56°.

Pressure29.83 inHg
Wind13.2 mph W
Humidity47%
Visibility—
Dew point45°
Sat, 1569° / 59°0Overcast
69 °Overcast

Castine, Saturday, 15 August

Overcast. High 69°, low 59°.

Pressure29.91 inHg
Wind12.2 mph W
Humidity62%
Visibility—
Dew point51°
Sun, 1672° / 53°0Clear
72 °Clear

Castine, Sunday, 16 August

Clear. High 72°, low 53°.

Pressure30.12 inHg
Wind7.2 mph N
Humidity57%
Visibility—
Dew point51°
Mon, 1770° / 57°0Partly cloudy
70 °Partly cloudy

Castine, Monday, 17 August

Partly cloudy. High 70°, low 57°.

Pressure30.18 inHg
Wind14.3 mph S
Humidity62%
Visibility—
Dew point55°
Tue, 1871° / 62°0Partly cloudy
71 °Partly cloudy

Castine, Tuesday, 18 August

Partly cloudy. High 71°, low 62°.

Pressure30.09 inHg
Wind16 mph S
Humidity70%
Visibility—
Dew point59°
Wed, 1971° / 61°0Partly cloudy
71 °Partly cloudy

Castine, Wednesday, 19 August

Partly cloudy. High 71°, low 61°.

Pressure30.00 inHg
Wind12.8 mph S
Humidity70%
Visibility—
Dew point59°
Thu, 2064° / 62°0.57Rain
64 °Rain

Castine, Thursday, 20 August

Rain. High 64°, low 62°.

Pressure29.71 inHg
Wind15.3 mph SE
Humidity98%
Visibility—
Dew point63°
Fri, 2172° / 60°0.11Light rain
72 °Light rain

Castine, Friday, 21 August

Light rain. High 72°, low 60°.

Pressure29.50 inHg
Wind16.6 mph W
Humidity87%
Visibility—
Dew point63°
Sat, 2272° / 56°0Clear
72 °Clear

Castine, Saturday, 22 August

Clear. High 72°, low 56°.

Pressure29.88 inHg
Wind13.1 mph W
Humidity42%
Visibility—
Dew point41°
Sun, 2370° / 52°0Overcast
70 °Overcast

Castine, Sunday, 23 August

Overcast. High 70°, low 52°.

Pressure30.06 inHg
Wind13 mph S
Humidity39%
Visibility—
Dew point42°

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 Castine, ME 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 Castine, ME 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.