National Weather ServiceIdahoFlood WatchArchive to October 1, 2026
Flood Watches in Idaho
The National Weather Service issued 18 flood watches for Idaho in 2025 and 17 a year on average in 2008-2025; in 2021-2025 it had the 34th most of any state. 2026 through September: 11, 30% below the average of 16 for those months in 2008-2025. Shoshone was covered most often (62 times since 2008).
How many flood watches does Idaho get?
Every flood watch that covered part of Idaho. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 11 |
| 2025 | 18 |
| 2024 | 5 |
| 2023 | 39 |
| 2022 | 13 |
| 2021 | 1 |
| 2020 | 11 |
| 2019 | 17 |
| 2018 | 20 |
| 2017 | 45 |
| 2016 | 8 |
| 2015 | 4 |
| 2014 | 20 |
| 2013 | 4 |
| 2012 | 18 |
| 2011 | 35 |
| 2010 | 13 |
| 2009 | 14 |
| 2008 | 15 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Idaho get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Idaho?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Shoshone | 62 | 15 | December 17, 2025 |
| Kootenai | 57 | 11 | December 17, 2025 |
| Latah | 55 | 14 | April 22, 2026 |
| Bonner | 46 | 11 | March 18, 2026 |
| Boundary | 45 | 9 | August 1, 2025 |
| Benewah | 44 | 9 | April 22, 2026 |
| Idaho | 33 | 12 | March 14, 2026 |
| Nez Perce | 32 | 7 | March 13, 2026 |
| Lewis | 29 | 8 | March 13, 2026 |
| Lemhi | 19 | 7 | January 29, 2026 |
| West Central Mountains | 17 | 7 | June 28, 2026 |
| Upper Weiser River | 16 | 5 | September 3, 2023 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a flood watch?
A flood watch means conditions may lead to flooding in the coming day or days; it is not yet happening. A watch means the conditions for the hazard are possible or favourable, but it is not yet happening: be ready to act if a warning follows. The national record · Every warning type in Idaho.