Deer Park, IL Live Doppler Radar
Live radar for Deer Park, Lake County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Deer Park?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 120 days in the Lake forecast zone and Lake County — the most common reported hazard around Deer Park, mostly in June and July. Next come heavy snow & winter storms (60 days) and flooding (40 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 120 | Jun 2026 | Aug 7, 2007 · 1 death |
| Heavy snow & winter storms | 60 | Dec 2025 | Jan 27, 2019 · 1 death |
| Flooding | 40 | Jun 2026 | Jun 13, 2008 · $500,000 damage |
| Flash flooding | 35 | Jul 2024 | Jul 12, 2017 · $13 million damage |
| High winds | 32 | Apr 2026 | Oct 26, 2010 · $100,000 damage |
| Lightning casualties & damage | 21 | Sep 2018 | Jun 3, 2002 · 1 death |
| Extreme cold & wind chill | 20 | Jan 2026 | — |
| Excessive heat | 9 | Jun 2026 | Jul 28, 1999 · 3 deaths |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Lake forecast zone and Lake County; damage is as reported, not adjusted for inflation.
How much snow does Deer Park get?
A normal year brings about 39 inches of snow to Deer Park, based on NOAA's 1991–2020 climate normals for the Barrington 3Sw weather station 5.3 miles away. The snowiest month is usually January (12.6 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.1 | 2.0 | 9.6 | 12.6 | 8.5 | 4.6 | 1.1 | 0.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Deer Park?
The closest NEXRAD Doppler radar is KLOT (Chicago, IL), about 39 miles south. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Deer Park | View |
|---|---|---|---|
| KLOT Chicago, IL | 39 mi south | 2,500 ft | Excellent — the lowest scan sees close to the ground |
| KMKX Milwaukee/Sullivan, WI | 60 mi north-northwest | 4,600 ft | Good — most storms and steady rain or snow show clearly |
| KDVN Quad Cities, IA | 134 mi west-southwest | 15,100 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Deer Park
Since 1950, NOAA has recorded 122 tornadoes within 25 miles of Deer Park, 29 of them EF2/F2 or stronger. Most came in July and June. The strongest was an F4 on April 21, 1967, which passed about 22 miles northwest of town and caused 24 deaths. The most recent was an EF0 on March 14, 2025, which touched down about 13 miles south-southwest of town.
Hail: 600 reports of 1-inch or larger hail within 25 miles since 1955, 28 of them 2 inches or more; the largest was 2.75-inch hail on April 7, 2020.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Deer Park's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Deer Park radar FAQ
Where is the nearest weather radar to Deer Park, IL?
KLOT (Chicago, IL), about 39 miles south. KMKX (Milwaukee/Sullivan, WI) is 60 miles away and also covers the area.
Does radar show snow in Deer Park?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Deer Park the lowest scan from KLOT is about 2,500 ft up.
Is TALON's radar for Deer Park free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Deer Park, follow it right away — see watch vs. warning.