Active National Weather Service alert for Saint Marie, Montana 59231: Severe Thunderstorm Watch. Severe Thunderstorm Watch issued August 23 at 3:48PM MDT until August 23 at 10:00PM MDT by NWS Glasgow MT Until Sun, 10:00 PM MDT.
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Saint Marie, Montana 59231 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 Saint Marie, Montana 59231. Always follow local warnings and emergency instructions.

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Weather status

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued August 23 at 3:48PM MDT until August 23 at 10:00PM MDT by NWS Glasgow MT Expires Sun, 10:00 PM MDT.

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Hourly forecast

Saint Marie, Montana 59231

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Saint Marie, Montana 59231. Forecasts and alerts update from NOAA and the National Weather Service.

81°Chance Showers And Thunderstorms53% rain
73°Rain Showers Likely69% rain
70°Slight Chance Rain Showers18% rain
68°Partly Cloudy8% rain
66°Mostly Clear9% rain
65°Partly Cloudy11% rain
64°Partly Cloudy8% rain
63°Mostly Clear1% rain

Next 24 hours

Rain Timeline

Highest chance 69%

Most likely around 8 PM, 9 PM. Expected type: Thunderstorms / Rain.

53%Thunderstorms
69%Rain
18%Rain
8%None
9%None
11%None
8%None
1%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
81°59°

Showers And Thunderstorms Likely then Partly Cloudy

Precipitation
69%
Wind
W 7 to 12 mph
Sunrise
6:12 AM
Sunset
8:08 PM

Mon

81°56°

Sunny

Precipitation
0%
Wind
WNW 12 to 24 mph
Sunrise
6:13 AM
Sunset
8:06 PM

Tue

81°53°

Sunny

Precipitation
0%
Wind
NW 13 to 16 mph
Sunrise
6:15 AM
Sunset
8:04 PM

Wed

82°57°

Sunny

Precipitation
2%
Wind
E 7 mph
Sunrise
6:16 AM
Sunset
8:02 PM

Thu

87°59°

Mostly Sunny

Precipitation
22%
Wind
SE 13 to 17 mph
Sunrise
6:18 AM
Sunset
8:00 PM

Fri

86°57°

Slight Chance Rain Showers then Mostly Sunny

Precipitation
15%
Wind
ENE 10 mph
Sunrise
6:19 AM
Sunset
7:58 PM

Sat

83°53°

Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms

Precipitation
26%
Wind
SE 8 to 13 mph
Sunrise
6:20 AM
Sunset
7:56 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 Feel81°F
Walking is not recommended now

Review the active Severe Thunderstorm Watch before going outside. MyUSA.us will not recommend this activity while an NWS watch, warning, or emergency is active.

WindW12 mph
Best walk timeReview the active Severe Thunderstorm Watch before leaving

MyUSA.us will not recommend an outing window while an NWS watch, warning, or emergency is active. Follow the official alert and local instructions.

Official EPA AirNowLocal air qualitySaint Marie, Montana 59231
View AQI +
More weather details
Wind gusts32mph
Rain now53%next hour
Humidity45%current
UV indexCheckingEPA forecast

Wind impact: Strong gusts — use extra care driving and during outdoor activities.

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 gust32 mph
Pressure
Visibility10.0 mi
Peak rain chance69%
Dew point55°F
Active alerts2

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Active NWS alerts

Weather safety ↗

Severe · Future

Severe Thunderstorm Watch

Applies to: Daniels, MT; Dawson, MT; Garfield, MT; McCone, MT; Petroleum, MT; Phillips, MT; Prairie, MT; Richland, MT; Roosevelt, MT; Sheridan, MT; Valley, MT; Wibaux, MTIssued by: NWS Glasgow MTSevere Thunderstorm Watch issued August 23 at 3:48PM MDT until August 23 at 10:00PM MDT by NWS Glasgow MT
Alert detailsTHE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 620 IN EFFECT UNTIL 10 PM MDT THIS EVENING FOR THE FOLLOWING AREAS IN MONTANA THIS WATCH INCLUDES 12 COUNTIES IN NORTHEAST MONTANA DANIELS DAWSON GARFIELD MCCONE PETROLEUM PHILLIPS PRAIRIE RICHLAND ROOSEVELT SHERIDAN VALLEY WIBAUX THIS INCLUDES THE CITIES OF CIRCLE, CULBERTSON, FAIRVIEW, FORT PECK, GLASGOW, GLENDIVE, JORDAN, MALTA, MEDICINE LAKE, OPHEIM, PLENTYWOOD, POPLAR, RICHEY, SACO, SCOBEY, SIDNEY, TERRY, WHITEWATER, WIBAUX, WINNETT, WOLF POINT, AND ZORTMAN.
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Moderate · Expected

Lake Wind Advisory

Applies to: Central and Southeast Phillips; Central and Southern Valley; Petroleum; Garfield; McConeIssued by: NWS Glasgow MTLake Wind Advisory issued August 23 at 12:34PM MDT until August 24 at 9:00PM MDT by NWS Glasgow MT
Alert details* WHAT...West winds 15 to 25 mph with gusts up to 40 mph expected. * WHERE...Fort Peck Lake. * WHEN...From 10 AM to 9 PM MDT Monday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft. * ADDITIONAL DETAILS...Wave heights 2 to 4 feet.
Safety instructionsBoaters on Fort Peck Lake should use extra caution since strong winds and rough waves can overturn small craft.
Visit local NWS office ↗