Community. Driven. Weather. Data. | Always Ad-Free | Developer FriendlyChecking statusDiscord
Become a supporter
Sign in

Crystal Lake, IL Weather Forecast

McHenry County, Illinois

Get free alerts

Live radar, warnings and storm tracking for Crystal Lake, with free alerts the moment it counts.

Conditions now
–  

Radar and alerts

Alerts refresh every minuteOpen live map →
Rain: light → heavy
Alerts …

Loading alerts…

Most serious first · click a row to find it on the map

© OpenStreetMap contributors, © Protomaps

Hour by hour

Seven-day outlook

Free alerts for Crystal Lake

Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.

Crystal Lake, IL at a glance

Crystal Lake is home to about 40,861 people in McHenry County, across 19 square miles. It ranks 38th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Lakewood, 3 miles away.

County
McHenry County
Population
40,861 2023 est.
Land area
19 sq mi
People per sq mi
2,152
Forecast point
42.2332°N, 88.3344°W

How well can the network see Crystal Lake?

45 mito radar KLOT

The nearest Doppler radar is KLOT (Chicago, IL), to the SSE. Its lowest scan passes about 3,100 ft above Crystal Lake. Close enough to see rotation in the low part of a storm, where tornadoes form.

20 mito station K06C

The closest weather station is K06C (Schaumburg Rgnl). Far enough that current conditions for Crystal Lake are a reading from somewhere else.

Forecasts near Crystal Lake

Elsewhere in Illinois

ChicagoAuroraJolietNapervilleRockfordElginAll Illinois forecasts →

Add WxAlerts to your Home Screen

  1. In Safari, tap Share.
  2. Choose Add to Home Screen, then Add.
  3. Open WxAlerts from your Home Screen and tap Turn on alerts.

It takes a free account, and it needs iOS 16.4 or later. More about it

May we use Microsoft Clarity to see how pages are used (clicks, scrolling and replays of a visit, with anything you type hidden), plus a random ID linking that to crash reports? Only to find bugs and confusing screens. Never advertising, never sold.