Lewis and Clark County, Montana weather alerts
No watches, warnings or advisories are in force for Lewis and Clark County.
Checked Mon, Sep 21, 2026, 10:15 PM MDT. Times are Mountain Daylight Time.
Warnings on the map
Every watch, warning and advisory the National Weather Service has in force over Lewis and Clark 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 Lewis and Clark 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 Lewis and Clark County
In the past year the National Weather Service issued 176 alerts for Lewis and Clark County, including 28 high wind warnings, 23 severe thunderstorm warnings, 7 winter storm warnings and 6 red flag warnings.
| Product | Issued | Most recent |
|---|---|---|
| High Wind Warning | 28 | Jun 16, 2026 |
| Severe Thunderstorm Warning | 23 | Sep 6, 2026 |
| Winter Storm Warning | 7 | Apr 2, 2026 |
| Red Flag Warning | 6 | Aug 7, 2026 |
| Flash Flood Warning | 3 | Jul 22, 2026 |
| Snow Squall Warning | 3 | Dec 27, 2025 |
| Blizzard Warning | 2 | Mar 14, 2026 |
| Ice Storm Warning | 1 | Dec 11, 2025 |
| High Wind Watch | 26 | Jun 10, 2026 |
| Winter Storm Watch | 11 | Apr 22, 2026 |
| Fire Weather Watch | 6 | Aug 7, 2026 |
| Flash Flood Watch | 6 | Sep 18, 2026 |
| Severe Thunderstorm Watch | 6 | Sep 6, 2026 |
| Flood Watch | 4 | Sep 18, 2026 |
| Extreme Heat Watch | 1 | Jul 12, 2026 |
| Winter Weather Advisory | 32 | May 17, 2026 |
| Flood Advisory | 5 | Jul 22, 2026 |
| Heat Advisory | 3 | Aug 1, 2026 |
| Cold Weather Advisory | 2 | Feb 17, 2026 |
| Dense Fog Advisory | 1 | Dec 24, 2025 |
Warnings issued
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Red Flag Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- High Wind Warning
- Severe Thunderstorm Warning
- High Wind Warning
- Severe Thunderstorm Warning
- High Wind Warning
- Winter Storm Warning
- Red Flag Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- Blizzard Warning
- Winter Storm Warning
- Blizzard Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- High Wind Warning
- Snow Squall Warning
- Snow Squall Warning
- High Wind Warning
- Snow Squall Warning
- High Wind Warning
- Winter Storm Warning
- High Wind Warning
And 13 earlier warnings.
Every alert, most recent first
- Flash Flood Watch
- Flood Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Flood Watch
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Severe Thunderstorm Watch
- Severe Thunderstorm Warning
- Flash Flood Watch
- Flash Flood Watch
- Fire Weather Watch
- Red Flag Warning
- Fire Weather Watch
- Red Flag Warning
- Fire Weather Watch
- Red Flag Warning
- Fire Weather Watch
- Heat Advisory
- Red Flag Warning
- Heat Advisory
- Fire Weather Watch
- Red Flag Warning
- Severe Thunderstorm Warning
- Flood Advisory
- Flash Flood Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Severe Thunderstorm Watch
- Flash Flood Warning
- Flood Advisory
- Severe Thunderstorm Warning
- Severe Thunderstorm Warning
- Flash Flood Watch
The 40 most recent of 176.
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 Lewis and Clark 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.