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Great Falls, MT weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for Great Falls, MT. Always follow local warnings and emergency instructions.

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Weather status

No dangerous weather alerts for Great Falls, MT

Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.

Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes

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What’s next

Hourly forecast

Great Falls, MT

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Great Falls, MT. Forecasts and alerts update from NOAA and the National Weather Service.

57°Chance Rain Showers32% rain
55°Chance Rain Showers44% rain
54°Chance Rain Showers42% rain
52°Chance Rain Showers30% rain
51°Chance Rain Showers45% rain
52°Chance Rain Showers43% rain
51°Slight Chance Rain Showers23% rain
51°Partly Cloudy14% rain

Next 24 hours

Rain Timeline

Highest chance 70%

Most likely around 9 PM, 10 PM, 12 AM, 1 AM. Expected type: Rain.

32%Rain
44%Rain
42%Rain
30%Rain
45%Rain
43%Rain
23%Rain
14%None
10%None
15%Rain
14%None
24%Rain
33%Rain
47%Rain
55%Rain
45%Rain
70%Rain
60%Rain
55%Rain
26%Rain
14%None
9%None
1%None
5%None

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

57°48°

Chance Rain Showers

Precipitation
45%
Wind
WSW 15 to 23 mph
Sunrise
6:53 AM
Sunset
7:56 PM

Tue

65°43°

Rain Showers Likely

Precipitation
70%
Wind
WSW 12 to 15 mph
Sunrise
6:54 AM
Sunset
7:54 PM

Wed

79°53°

Sunny

Precipitation
0%
Wind
WSW 8 to 17 mph
Sunrise
6:55 AM
Sunset
7:52 PM

Thu

81°47°

Mostly Sunny

Precipitation
42%
Wind
WSW 17 to 24 mph
Sunrise
6:57 AM
Sunset
7:50 PM

Fri

63°41°

Chance Rain Showers

Precipitation
41%
Wind
NNE 5 to 9 mph
Sunrise
6:58 AM
Sunset
7:47 PM

Sat

60°37°

Chance Rain Showers

Precipitation
53%
Wind
NE 5 to 12 mph
Sunrise
6:59 AM
Sunset
7:45 PM

Sun

55°37°

Chance Rain Showers

Precipitation
49%
Wind
NNW 8 mph
Sunrise
7:01 AM
Sunset
7:43 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel57°F
Good conditions for walking

Conditions look reasonable, but stay alert for quick weather changes.

WindSW22 mph
Best walk timeBetter weather window: 4 AM–6 AM

Walking: 13% average rain chance, near 50°F, with winds near 16 mph.

Official EPA AirNowLocal air qualityGreat Falls, MT
View AQI +
More weather details
Wind gusts28mph
Rain now32%next hour
Humidity51%current
UV indexCheckingEPA forecast

Wind impact: Breezy — cycling, umbrellas, and loose outdoor items may be affected.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gust28 mph
Pressure
Visibility10.0 mi
Peak rain chance70%
Dew point39°F
Active alertsNone

Official risk outlooks

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