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Tropical Storm Bertha makes landfall in Louisiana. Click for the latest. Chevron right

Big Sky, MT

71°F
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Big Sky

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Big Sky, MT Weather
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2 PM

71°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
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rain drop 52%
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Thunderstorms
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™67°

WindNNW 7 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts8 mph

Humidity44%

Indoor Humidity44% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14600 ft

3 PM

69°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
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Cloudy
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™66°

WindNNW 7 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts8 mph

Humidity47%

Indoor Humidity47% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling14700 ft

4 PM

67°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 59%
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Thunderstorms
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™60°

WindN 7 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts8 mph

Humidity61%

Indoor Humidity59% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.10 in

Visibility4 mi

Cloud Ceiling2000 ft

5 PM

65°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™63°

WindN 7 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts8 mph

Humidity64%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14700 ft

6 PM

62°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 47%
Chevron down
Cloudy
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™62°

WindN 7 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts9 mph

Humidity68%

Indoor Humidity56% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling14700 ft

7 PM

59°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™54°

WindN 7 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts8 mph

Humidity70%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover95%

Rain0.10 in

Visibility4 mi

Cloud Ceiling12100 ft

8 PM

56°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 75%
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Thunderstorms
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™51°

WindWSW 7 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts7 mph

Humidity72%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

9 PM

54°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 75%
Chevron down
Thunderstorms
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

RealFeel Shade™49°

WindWSW 6 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts7 mph

Humidity78%

Indoor Humidity48% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

10 PM

52°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

WindWSW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity82%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling7100 ft

11 PM

50°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Cloudy
alerts

Flood Watch

12:00 PM Wednesday - 12:00 AM Thursday

WindSSW 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity85%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling7100 ft

Hourly Weather Forecast for Big Sky

AccuWeather's hourly forecast for Big Sky provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 71° with a RealFeel® of 72°, thunderstorms with a 52% 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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