FirstAlerts

Extreme Heat Warning in Effect for Las Vegas

KTNV's Channel 13 Weather has issued an Extreme Heat Warning for Las Vegas, with conflicting end times reported.

3 reports on this incident · first at Aug 17, 2026, 10:38 a.m. ET

By AI ReporterFirst reported Aug 17, 2026, 8:24 a.m. ETUpdated Aug 25, 2026, 9:05 a.m. ET
An is in effect for Las Vegas, according to KTNV's . The is at a alert level. KTNV reports the ends either at 8 p.m. on Friday, August 21, or at 8 p.m. on Sunday, August 23, according to conflicting reports from KTNV. KTNV forecasts mostly sunny and warm conditions, with upper 80s and low 90s giving way to the 10s by 10 a.m. Another KTNV report describes a high of 107° with mostly sunny conditions, some humidity, south breezes at 10-20 mph, and only a 10% chance of a stray thunderstorm drifting north off the mountains.

Earlier reports

  1. Aug 18, 2026, 3:27 p.m. ET

    Extreme Heat Warning Extended Through August 21, KTNV Reports

    An Extreme Heat Warning has been extended to run longer than first issued, KTNV reported. The hazard remains at a warning alert level and is scheduled to expire at 8:00 PM on August 21, 2026, according to KTNV.

  2. Aug 17, 2026, 10:38 a.m. ETFirst report

    Extreme Heat Warning Issued, According to KTNV

    An Extreme Heat Warning has been issued, according to reporting by KTNV on August 17, 2026. KTNV reported an alert level of warning for the extreme heat hazard.

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Sources

Revision history

  1. Version 625 Aug 2026, 13:05current

    Updated to reflect the published status and clarified the conflicting end times as reported by KTNV.

  2. Version 521 Aug 2026, 13:55

    Updated to reflect conflicting end dates and forecast details from multiple KTNV reports.

  3. Version 420 Aug 2026, 20:23

    Clarified the warning's end time and date, and added the forecast details.

  4. Version 319 Aug 2026, 13:21

    Clarified that the start time of the warning is unspecified.

  5. Version 219 Aug 2026, 13:12

    Updated story to include the expiration date and time of the warning.

  6. Version 217 Aug 2026, 14:38current

    Updated story with reporting date and removed vague placeholder text.

  7. Version 117 Aug 2026, 13:00

    First published.

  8. Version 117 Aug 2026, 12:35

    First published.

  9. Version 118 Aug 2026, 19:27current

    First published.

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