Sweet Grass County, Montana weather alerts
No watches, warnings or advisories are in force for Sweet Grass County.
Checked Sun, Sep 20, 2026, 10:31 AM MDT. Times are Mountain Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Sweet Grass County, Montana. Open it for the live map, where it pans and zooms.























Open the live map with warnings and watches
Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.
Alerts in force
Nothing is in force for Sweet Grass County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.
The past year in Sweet Grass County
In the past year the National Weather Service issued 151 alerts for Sweet Grass County, including 19 high wind warnings, 15 winter storm warnings, 8 severe thunderstorm warnings and 7 red flag warnings.
| Product | Issued | Most recent |
|---|---|---|
| High Wind Warning | 19 | May 14, 2026 |
| Winter Storm Warning | 15 | May 20, 2026 |
| Severe Thunderstorm Warning | 8 | Jul 25, 2026 |
| Red Flag Warning | 7 | Sep 10, 2026 |
| Extreme Heat Warning | 3 | Aug 1, 2026 |
| Flash Flood Warning | 2 | Sep 18, 2026 |
| High Wind Watch | 14 | May 13, 2026 |
| Winter Storm Watch | 11 | Apr 22, 2026 |
| Fire Weather Watch | 7 | Sep 10, 2026 |
| Severe Thunderstorm Watch | 5 | Aug 27, 2026 |
| Flood Watch | 4 | Sep 18, 2026 |
| Extreme Heat Watch | 3 | Aug 1, 2026 |
| Flash Flood Watch | 1 | May 30, 2026 |
| Wind Advisory | 29 | May 13, 2026 |
| Winter Weather Advisory | 21 | Jun 27, 2026 |
| Flood Advisory | 1 | Sep 18, 2026 |
| Heat Advisory | 1 | Jul 24, 2026 |
Warnings issued
- Flash Flood Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Red Flag Warning
- Extreme Heat Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Red Flag Warning
- Extreme Heat Warning
- Winter Storm Warning
- High Wind Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Winter Storm Warning
- Winter Storm Warning
- High Wind Warning
- Winter Storm Warning
- Red Flag Warning
- High Wind Warning
- Winter Storm Warning
- Winter Storm Warning
- High Wind Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
- High Wind Warning
- Winter Storm Warning
- Winter Storm Warning
- High Wind Warning
- Winter Storm Warning
Every alert, most recent first
- Flash Flood Warning
- Flood Advisory
- Flood Watch
- Fire Weather Watch
- Red Flag Warning
- Fire Weather Watch
- Red Flag Warning
- Severe Thunderstorm Watch
- Severe Thunderstorm Watch
- Fire Weather Watch
- Red Flag Warning
- Fire Weather Watch
- Red Flag Warning
- Extreme Heat Watch
- Extreme Heat Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Fire Weather Watch
- Red Flag Warning
- Extreme Heat Warning
- Heat Advisory
- Extreme Heat Watch
- Flood Watch
- Severe Thunderstorm Watch
- Flash Flood Warning
- Severe Thunderstorm Warning
- Flood Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flood Watch
- Red Flag Warning
- Fire Weather Watch
- Extreme Heat Watch
- Extreme Heat Warning
- Winter Weather Advisory
- Winter Weather Advisory
- Winter Weather Advisory
- Winter Weather Advisory
- Flash Flood Watch
The 40 most recent of 151.
From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.
Nearby
The counties around Sweet Grass County, with what is in force in each.
What this means
- Warning
- The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
- Watch
- Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
- Advisory
- A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
- Statement
- Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.
Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.
Sources
Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.