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Northeast storm to bring rain, some snow this week. Click for the forecast.

Atlantic hurricane season update: See how many storms are expected through rest of 2026.

Castine, ME

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Castine, ME Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center

Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

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11 AM

45°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

1%

Intermittent clouds

RealFeel Shade™37°

WindNW 12 mph

Air QualityExcellent

Max UV Index1.5 (Low)

Wind Gusts17 mph

Humidity64%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover53%

Visibility10 mi

Cloud Ceiling9900 ft

12 PM

46°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

1%

Intermittent clouds

RealFeel Shade™39°

WindNW 12 mph

Air QualityExcellent

Max UV Index1.1 (Low)

Wind Gusts17 mph

Humidity58%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling4800 ft

1 PM

47°

RealFeel® 41°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Intermittent clouds

RealFeel Shade™41°

WindNW 10 mph

Air QualityExcellent

Max UV Index1.0 (Low)

Wind Gusts17 mph

Humidity56%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling3700 ft

2 PM

47°

RealFeel® 43°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Intermittent clouds

RealFeel Shade™43°

WindNW 10 mph

Air QualityExcellent

Max UV Index1.0 (Low)

Wind Gusts16 mph

Humidity54%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling8600 ft

3 PM

48°

RealFeel® 44°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Intermittent clouds

RealFeel Shade™44°

WindNW 9 mph

Air QualityExcellent

Max UV Index0.8 (Low)

Wind Gusts14 mph

Humidity53%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling13600 ft

4 PM

47°

RealFeel® 43°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Intermittent clouds

RealFeel Shade™43°

WindNW 8 mph

Air QualityExcellent

Max UV Index0.4 (Low)

Wind Gusts13 mph

Humidity56%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling18500 ft

5 PM

45°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Intermittent clouds

WindNW 7 mph

Air QualityExcellent

Wind Gusts10 mph

Humidity61%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover56%

Visibility10 mi

Cloud Ceiling22400 ft

6 PM

43°

RealFeel® 39°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

0%

Intermittent clouds

WindNW 7 mph

Air QualityExcellent

Wind Gusts7 mph

Humidity68%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover51%

Visibility10 mi

Cloud Ceiling26200 ft

7 PM

42°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Partly cloudy

WindWNW 6 mph

Air QualityExcellent

Wind Gusts6 mph

Humidity69%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

42°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

0%

Partly cloudy

WindNW 5 mph

Air QualityExcellent

Wind Gusts6 mph

Humidity69%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover35%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

41°

RealFeel® 39°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

0%

Mostly clear

WindNW 5 mph

Air QualityExcellent

Wind Gusts6 mph

Humidity72%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

40°

RealFeel® 38°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

0%

Partly cloudy

WindNNW 5 mph

Air QualityExcellent

Wind Gusts6 mph

Humidity75%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover30%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

39°

RealFeel® 38°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

0%

Partly cloudy

WindNNW 5 mph

Air QualityExcellent

Wind Gusts5 mph

Humidity76%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Castine

AccuWeather's hourly forecast for Castine provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 45° with a RealFeel® of 40°, intermittent clouds with a 1% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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