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Daily risk for severe t-storms across the Plains and Midwest this week. Get the forecast. Chevron right

St. Marys, MT

46°F
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St. Marys

Montana

46°
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St. Marys, MT Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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5 PM

46°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 58%
Chevron down
Showers

RealFeel Shade™32°

WindWSW 18 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts35 mph

Humidity50%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling22300 ft

6 PM

45°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 66%
Chevron down
Mostly cloudy w/ showers

RealFeel Shade™30°

WindWSW 18 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts35 mph

Humidity56%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

7 PM

44°
RealFeel® 33°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 49%
Chevron down
Intermittent clouds

RealFeel Shade™32°

WindWSW 20 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts35 mph

Humidity59%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling27400 ft

8 PM

44°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds

RealFeel Shade™32°

WindWSW 20 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts30 mph

Humidity59%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

44°
RealFeel® 32°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds

RealFeel Shade™32°

WindWSW 20 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts29 mph

Humidity59%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

43°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds

WindWSW 18 mph

Air QualityFair

Wind Gusts28 mph

Humidity60%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover55%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

43°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 4%
Chevron down
Partly cloudy

WindWSW 17 mph

Air QualityFair

Wind Gusts28 mph

Humidity58%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Saint Mary

AccuWeather's hourly forecast for Saint Mary provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 46° with a RealFeel® of 34°, showers with a 58% 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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