National Weather ServiceNevadaExtreme Heat WarningArchive to October 1, 2026
Extreme Heat Warnings in Nevada
The National Weather Service issued 9 extreme heat warnings for Nevada in 2025 and 6 a year on average in 2008-2025; in 2021-2025 it had the 12th most of any state. 2026 through September: 8, 25% above the average of 6 for those months in 2008-2025. Las Vegas Valley was covered most often (89 times since 2008).
How many extreme heat warnings does Nevada get?
Every extreme heat warning that covered part of Nevada. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 8 |
| 2025 | 9 |
| 2024 | 12 |
| 2023 | 7 |
| 2022 | 6 |
| 2021 | 16 |
| 2020 | 10 |
| 2019 | 7 |
| 2018 | 8 |
| 2017 | 4 |
| 2016 | 5 |
| 2015 | 3 |
| 2014 | 2 |
| 2013 | 3 |
| 2012 | 4 |
| 2011 | 3 |
| 2010 | 4 |
| 2009 | 5 |
| 2008 | 7 |
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 Nevada 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 Nevada?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Las Vegas Valley | 89 | 22 | September 10, 2026 |
| Western Clark and Southern Nye County | 88 | 21 | September 10, 2026 |
| Lake Mead National Recreation Area | 87 | 21 | March 18, 2026 |
| Northeast Clark County | 84 | 21 | September 10, 2026 |
| Southern Clark County | 75 | 16 | August 24, 2026 |
| Lincoln County | 17 | 6 | July 30, 2026 |
| Esmeralda and Central Nye County | 14 | 4 | July 30, 2026 |
| Southeastern Elko County | 13 | 5 | August 6, 2026 |
| Humboldt County | 10 | 4 | August 6, 2026 |
| Northwestern Nye County | 7 | 3 | August 6, 2026 |
| Northern Lander County and Northern Eureka County | 7 | 3 | August 6, 2026 |
| Northeastern Nye County | 7 | 3 | August 6, 2026 |
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.
The latest extreme heat warnings for Nevada in AreaZine's record
NWS Las VegasWarningSeptember 9, 2026
Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 9 more, AZ and CA
Expired 8:00 p.m. PDT, September 10, 2026
NWS Las VegasWarningAugust 17, 2026
Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more, AZ and CA
Expired 8:00 p.m. PDT, August 21, 2026
NWS RenoWarningAugust 6, 2026
Extreme Heat Warning: Western Nevada Basin and Range including Pyramid Lake, NV
Expired 8:00 a.m. PDT, August 10, 2026
NWS ElkoWarningAugust 5, 2026
Extreme Heat Warning: Southeastern Elko County and South Central Elko County, NV
Expired 11:00 p.m. PDT, August 9, 2026
NWS Las VegasWarningAugust 4, 2026
Extreme Heat Warning: Northwest Plateau, Lake Havasu and Fort Mohave, Lake Mead - AZ side and 19 more, AZ and CA
Expired 8:00 p.m. PDT, August 8, 2026
NWS Las VegasWarningJuly 25, 2026
Extreme Heat Warning: Lake Havasu and Fort Mohave, Lake Mead - AZ side, Lake Mohave - AZ side and 13 more, AZ and CA
Expired 8:00 p.m. PDT, July 27, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is an extreme heat warning?
An extreme heat warning means dangerous heat is expected, measured by heat index or temperature thresholds each office sets. It replaced the excessive heat warning in 2025. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. AreaZine's counts include the excessive heat warnings issued before the change. The national record · Every warning type in Nevada.