---
title: No Relief — tile-layer & hex-layer
description: Explore the 2026 U.S. heat wave hour by hour — feels-like heat, sleepless nights, records, and how long it holds. A live map from Tomorrow.io.
image: https://info.tomorrow.io/hubfs/heatdome/july4-cover-1x1.png
---

No Relief

The nights the heat never let go — when the overnight low stayed at or above 68°F and never gave the body its chance to cool. Warm nights are what make heat waves dangerous; this is that no-recovery footprint, coast to coast.

res — · — cells

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Layers▾

Select a layer · CONUS

[**Heat Index***peak feels-like*›](https://info.tomorrow.io/heatdome)

[**Persistence***accumulated hot days*›](https://info.tomorrow.io/heatdome/persistence)

**Sleepless Nights***nights without recovery*

Tile

Hexagons

Opacity

[**Anomaly***how far above normal*›](https://info.tomorrow.io/heatdome/anomaly)

[**Record Watch***record-breaking heat*›](https://info.tomorrow.io/heatdome/records)

Show all as

Raster

Hexagons

Units

°F

°C

[☰ All maps & the full gallery](https://info.tomorrow.io/heatdome)

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[The storyOne heat wave, global to local →](https://info.tomorrow.io/heatdome/story)