Dahlgren, IL Live Doppler Radar
Live radar for Dahlgren, Hamilton County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Dahlgren?
Since 1996, the National Weather Service has logged dangerous heat on 84 days in the Hamilton forecast zone and Hamilton County — the most common reported hazard around Dahlgren, mostly in July and August. Next come damaging thunderstorm winds (51 days) and heavy snow & winter storms (40 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Excessive heat | 84 | Aug 2025 | — |
| Damaging thunderstorm winds | 51 | Oct 2025 | Aug 1, 2024 · $90,000 damage |
| Heavy snow & winter storms | 40 | Jan 2026 | Jan 26, 2009 · $100,000 damage |
| Flash flooding | 30 | Aug 2025 | Mar 3, 2023 · $200,000 damage |
| Extreme cold & wind chill | 26 | Jan 2026 | — |
| Flooding | 15 | Aug 2025 | Mar 18, 2008 · $340,000 damage |
| High winds | 8 | Apr 2016 | Apr 6, 2016 · 1 death · $40,000 damage |
| Ice storms & sleet | 5 | Jan 2010 | — |
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 Hamilton forecast zone and Hamilton County; damage is as reported, not adjusted for inflation.
How much snow does Dahlgren get?
A normal year brings about 13 inches of snow to Dahlgren, based on NOAA's 1991–2020 climate normals for the Mcleansboro weather station 11 miles away. The snowiest month is usually January (3.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.6 | 0.2 | 3.4 | 3.7 | 3.3 | 2.1 | 0.0 | 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 Dahlgren?
The closest NEXRAD Doppler radar is KVWX (Evansville, IN), about 52 miles east. 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 Dahlgren | View |
|---|---|---|---|
| KVWX Evansville, IN | 52 mi east | 3,800 ft | Good — most storms and steady rain or snow show clearly |
| KPAH Paducah, KY | 78 mi south | 6,700 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KLSX St. Louis, MO | 114 mi west-northwest | 11,700 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 Dahlgren
Since 1950, NOAA has recorded 75 tornadoes within 25 miles of Dahlgren, 24 of them EF2/F2 or stronger. Most came in March and April. The strongest was an F4 on December 18, 1957, which passed about 12 miles north-northwest of town and caused 1 death. The most recent was an EF1 on March 14, 2024, which touched down about 16 miles northwest of town.
Hail: 171 reports of 1-inch or larger hail within 25 miles since 1955, 18 of them 2 inches or more; the largest was 3.50-inch hail on August 6, 2019.
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 Dahlgren'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.
Dahlgren radar FAQ
Where is the nearest weather radar to Dahlgren, IL?
KVWX (Evansville, IN), about 52 miles east. KPAH (Paducah, KY) is 78 miles away and also covers the area.
Does radar show snow in Dahlgren?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Dahlgren the lowest scan from KVWX is about 3,800 ft up.
Is TALON's radar for Dahlgren 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 Dahlgren, follow it right away — see watch vs. warning.
Radar for nearby towns
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