Active National Weather Service alert for Grassy Butte, North Dakota 58634: Severe Thunderstorm Watch. Severe Thunderstorm Watch issued August 23 at 4:59PM CDT until August 23 at 10:00PM CDT by NWS Bismarck ND Until Sun, 10:00 PM CDT.
Change

Live across America

Grassy Butte, North Dakota 58634 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 Grassy Butte, North Dakota 58634. Always follow local warnings and emergency instructions.

Save

The latest NWS station observation is delayed. Current temperature and conditions use the first official hourly forecast until a fresh observation arrives.

Weather guidance for your areaPlan with the complete forecast

Use current official weather information for Grassy Butte, North Dakota 58634 before making weather-sensitive plans.

Safety guides

Weather status

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued August 23 at 4:59PM CDT until August 23 at 10:00PM CDT by NWS Bismarck ND Expires Sun, 10:00 PM CDT.

Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes

Live Doppler radar

Animated Multi-Radar/Multi-Sensor reflectivity from the National Weather Service’s network of Doppler radars. Search a U.S. city, ZIP code, or street address to center the map on local weather, then zoom to neighborhood street detail.

Open full NWS Doppler radar ↗
Live radar is ready when you need it.

The interactive map stays off until opened to keep forecasts fast.

After loading, MyUSA.us shows the exact Doppler frame time, refresh controls, and an official NWS fallback if the map is unavailable.

Doppler radar and warnings: NOAA/National Weather Service · Map: OpenFreeMap, OpenMapTiles and OpenStreetMap contributors. Radar can be delayed briefly during service updates.

MyUSA.us is not affiliated with or endorsed by NOAA or the National Weather Service. For life-threatening weather, follow official NWS alerts and local authorities.

What’s next

Hourly forecast

Grassy Butte, North Dakota 58634

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Grassy Butte, North Dakota 58634. Forecasts and alerts update from NOAA and the National Weather Service.

81°Chance Showers And Thunderstorms27% rain
80°Slight Chance Showers And Thunderstorms15% rain
79°Mostly Clear7% rain
76°Mostly Clear11% rain
73°Mostly Clear13% rain
70°Slight Chance Showers And Thunderstorms19% rain
69°Slight Chance Showers And Thunderstorms15% rain
68°Partly Cloudy10% rain

Next 24 hours

Rain Timeline

Highest chance 27%

Scattered precipitation is possible. The highest official hourly chance is 27%; check the radar before heading out.

27%Thunderstorms
15%Thunderstorms
7%None
11%None
13%None
19%Thunderstorms
15%Thunderstorms
10%None
6%None
4%None
5%None
3%None
5%None
12%None
12%None
12%None
17%Thunderstorms
17%Thunderstorms
17%Thunderstorms
0%None
0%None
0%None
0%None
0%None

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
81°63°

Chance Showers And Thunderstorms

Precipitation
27%
Wind
S 9 to 16 mph
Sunrise
7:01 AM
Sunset
8:53 PM

Mon

84°59°

Slight Chance Showers And Thunderstorms

Precipitation
17%
Wind
W 8 to 20 mph
Sunrise
7:02 AM
Sunset
8:51 PM

Tue

80°54°

Sunny

Precipitation
0%
Wind
NW 13 to 21 mph
Sunrise
7:04 AM
Sunset
8:49 PM

Wed

80°54°

Sunny

Precipitation
0%
Wind
NW 5 to 8 mph
Sunrise
7:05 AM
Sunset
8:47 PM

Thu

84°60°

Mostly Sunny

Precipitation
29%
Wind
SE 8 to 14 mph
Sunrise
7:06 AM
Sunset
8:45 PM

Fri

86°59°

Chance Showers And Thunderstorms

Precipitation
29%
Wind
SE 15 mph
Sunrise
7:08 AM
Sunset
8:43 PM

Sat

85°58°

Mostly Sunny then Slight Chance Showers And Thunderstorms

Precipitation
39%
Wind
SE 7 to 14 mph
Sunrise
7:09 AM
Sunset
8:41 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 Feel83°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.

WindSE15 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 qualityGrassy Butte, North Dakota 58634
View AQI +
More weather details
Wind gustsNot reported
Rain now27%next hour
Humidity58%current
UV indexCheckingEPA forecast

Wind impact: Noticeable breeze with generally minor outdoor impact.

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 gustNot reported
Pressure
Visibility
Peak rain chance27%
Dew point65°F
Active alerts1

Official risk outlooks

These national tools add expert storm, heavy-rain and flooding context to your local forecast.

Loading nearby traffic cameras…

Official tropical weather

Hurricane center

NOAA National Hurricane Center updates, outlooks, and storm resources in one place.

Stay weather-ready

Active NWS alerts

Weather safety ↗

Severe · Future

Severe Thunderstorm Watch

Applies to: Adams, ND; Billings, ND; Bowman, ND; Dunn, ND; Golden Valley, ND; Grant, ND; Hettinger, ND; McKenzie, ND; Mercer, ND; Morton, ND; Oliver, ND; Sioux, ND; Slope, ND; Stark, NDIssued by: NWS Bismarck NDSevere Thunderstorm Watch issued August 23 at 4:59PM CDT until August 23 at 10:00PM CDT by NWS Bismarck ND
Alert detailsTHE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 621 IN EFFECT UNTIL 10 PM CDT /9 PM MDT/ THIS EVENING FOR THE FOLLOWING AREAS IN NORTH DAKOTA THIS WATCH INCLUDES 14 COUNTIES IN NORTHWEST NORTH DAKOTA MCKENZIE IN SOUTH CENTRAL NORTH DAKOTA GRANT MERCER MORTON OLIVER SIOUX IN SOUTHWEST NORTH DAKOTA ADAMS BILLINGS BOWMAN DUNN GOLDEN VALLEY HETTINGER SLOPE STARK THIS INCLUDES THE CITIES OF BEACH, BEULAH, BOWMAN, CARSON, CENTER, DICKINSON, ELGIN, FAIRFIELD, FORT YATES, HALLIDAY, HAZEN, HETTINGER, KILLDEER, MANDAN, MARMARTH, MEDORA, MOTT, NEW ENGLAND, NEW LEIPZIG, SELFRIDGE, SOLEN, AND WATFORD CITY.
Visit local NWS office ↗