Live · updated 1 min ago
Sweet Grass County weather alerts
No active National Weather Service alerts for Sweet Grass County, Montana right now. The most recent was a Red Flag Warning that ended Sep 3, 9:00 PM.
5 in the last 30 days 5 in 12 months (since Aug 30) most common: Red Flag Warning Get alerts on your phone →
Active alerts for Sweet Grass County
Refreshed every few minutes; times in MDT.
All clear in Sweet Grass County
No warnings, watches or advisories are in effect. See what is active across the country, or check a neighbouring county below.
Get Sweet Grass County alerts on your phone before you think to look them up
Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.
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Where
Sweet Grass County on the map
Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.
Last 30 days
Recent alerts for Sweet Grass County
| Alert | Issued | Ended | Issued by |
|---|---|---|---|
| Red Flag Warning | Sep 3, 2:19 PM | Sep 3, 9:00 PM | Billings MT |
| Red Flag Warning | Sep 3, 2:53 AM | Sep 3, 9:00 PM | Billings MT |
| Red Flag Warning | Sep 2, 12:10 PM | Sep 3, 9:00 PM | Billings MT |
| Fire Weather Watch | Sep 2, 7:20 AM | Cancelled Sep 2, 12:11 PM | Billings MT |
| Fire Weather Watch | Sep 1, 11:54 AM | Sep 3, 8:00 PM | Billings MT |
Pattern
What Sweet Grass County gets alerted for
Every alert that named Sweet Grass County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.
Plain English
What these alerts mean
A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.
Critical fire weather: dry fuels, low humidity and gusty winds. Any fire can spread rapidly; avoid outdoor burning.
Critical fire weather conditions are possible. Postpone outdoor burning.
Nearby
Alerts near Sweet Grass County
Neighbouring counties in Montana
Questions
About Sweet Grass County alerts
How do I get Sweet Grass County weather alerts on my iPhone?
Install Forecast Bar, add Sweet Grass County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Sweet Grass County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.
Where do these alerts come from?
From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Sweet Grass County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.
What is the difference between a watch, a warning and an advisory?
A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.
Can I get this data as JSON?
Yes. /weather-alerts/mt/sweet-grass-county.json returns the active alerts, the last 30 days and the 12-month counts for Sweet Grass County, refreshed every minute. Please cache responses and credit National Weather Service as the source.
Never find out about a Sweet Grass County alert from this page again
Add Sweet Grass County in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.
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