Custer County rain reports, Montana
Custer County, Montana has 4 reports of rain for 2026, the heaviest storm total 0.78 inches at 3 NE Ismay on October 12, 2026, reported to the National Weather Service.
as of
County standing in Montana
During 2026, Custer County places 8 among 17 counties in Montana by number of reports filed. Custer County accounts for 4% of the 90 reports recorded in Montana for this period. Montana's largest figure for the 2026 period came from Lewis and Clark County, at 12.00 inches. The Custer County reports trace back to 1 storm.
| Rank among counties | 8 / 17 |
|---|---|
| Share of state reports | 4% |
| State's largest this period | 12.00 inches, Lewis and Clark |
| Distinct storms | 1 |
Each figure here comes from Local Storm Reports, and the numbers cover only the stated period. A county with more spotters can rank high on reporting volume, whatever the weather did.
Rain reports in 2026
| Amount | Place | Reported by | Time |
|---|---|---|---|
| 0.65 inches | 3 WNW Miles City | ASOS | , October 12, 2026 |
| 0.57 inches | 3 NW Miles City | ASOS | , October 12, 2026 |
| 0.50 inches | 4 SE Knowlton | Mesonet | , October 12, 2026 |
| 0.78 inches | 3 NE Ismay | Cocorahs | , October 12, 2026 |
An observer's name and the total they measured come with every National Weather Service Local Storm Report that lists Custer County in the county field.
Storms behind the totals
- Rain totals for October 12, 2026 1.70 inches 2 S Fort Smith, MT
Days with rain reports
National Weather Service offices file Local Storm Reports; the Iowa Environmental Mesonet of Iowa State University relays them to this page, where they appear as live spotter reports. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.