Lemay, MO Live Doppler Radar
Live radar for Lemay, St. Louis County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Lemay?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 207 days in the St. Louis forecast zone and St. Louis County — the most common reported hazard around Lemay, mostly in June and July. Next come excessive heat (94 days) and flash flooding (66 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 207 | Jun 2026 | May 16, 2025 · 1 death |
| Excessive heat | 94 | Aug 2025 | Jul 18, 1999 · 5 deaths |
| Flash flooding | 66 | Jun 2026 | Sep 14, 2008 · 3 deaths |
| Heavy snow & winter storms | 50 | Nov 2025 | Nov 30, 2006 · $40 million damage |
| Flooding | 20 | Apr 2025 | Dec 27, 2015 · $235 million damage |
| Lightning casualties & damage | 15 | Aug 2021 | Jun 15, 2010 · 1 death |
| High winds | 12 | Mar 2025 | Mar 14, 2025 · $50,000 damage |
| Ice storms & sleet | 6 | Feb 2022 | Jan 12, 2007 · $100,000 damage |
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 St. Louis forecast zone and St. Louis County; damage is as reported, not adjusted for inflation.
How much snow does Lemay get?
A normal year brings about 14 inches of snow to Lemay, based on NOAA's 1991–2020 climate normals for the Cahokia weather station 5.4 miles away. The snowiest month is usually January (4.9 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.8 | 2.9 | 4.9 | 3.7 | 1.2 | 0.3 | 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 Lemay?
The closest NEXRAD Doppler radar is KLSX (St. Louis, MO), about 24 miles west-northwest. 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 Lemay | View |
|---|---|---|---|
| KLSX St. Louis, MO | 24 mi west-northwest | 1,400 ft | Excellent — the lowest scan sees close to the ground |
| KILX Lincoln, IL | 123 mi north-northeast | 13,200 ft | Limited — the beam overshoots the lowest part of storms |
| KPAH Paducah, KY | 131 mi southeast | 14,600 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 Lemay
Since 1950, NOAA has recorded 182 tornadoes within 25 miles of Lemay, 54 of them EF2/F2 or stronger. Most came in April and May. The strongest was an F4 on February 10, 1959, which passed about 6 miles north-northwest of town and caused 21 deaths. The most recent was an EF1 on June 4, 2025, which passed about 18 miles west-northwest of town.
Hail: 1,046 reports of 1-inch or larger hail within 25 miles since 1955, 122 of them 2 inches or more; the largest was 4.50-inch hail on May 25, 2011.
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 Lemay'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.
Lemay radar FAQ
Where is the nearest weather radar to Lemay, MO?
KLSX (St. Louis, MO), about 24 miles west-northwest. KILX (Lincoln, IL) is 123 miles away and also covers the area.
Does radar show snow in Lemay?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Lemay the lowest scan from KLSX is about 1,400 ft up.
Is TALON's radar for Lemay 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 Lemay, follow it right away — see watch vs. warning.
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