Raritan, IL Live Doppler Radar
Live radar for Raritan, Henderson County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Raritan?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 57 days in the Henderson forecast zone and Henderson County — the most common reported hazard around Raritan, mostly in January and December. Next come damaging thunderstorm winds (53 days) and flooding (40 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 57 | Nov 2025 | — |
| Damaging thunderstorm winds | 53 | Jun 2026 | Jul 8, 2003 · $220,000 damage |
| Flooding | 40 | Jul 2024 | May 21, 2003 · $1.0 million damage |
| Flash flooding | 15 | Aug 2023 | May 4, 2003 · $500,000 damage |
| Extreme cold & wind chill | 12 | Jan 2019 | — |
| Ice storms & sleet | 11 | Dec 2024 | Jan 5, 2005 · $10,000 damage |
| High winds | 7 | Dec 2021 | Apr 6, 1997 · $100,000 damage |
| Excessive heat | 5 | Aug 2013 | — |
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 Henderson forecast zone and Henderson County; damage is as reported, not adjusted for inflation.
Which radars cover Raritan?
The closest NEXRAD Doppler radar is KDVN (Quad Cities, IA), about 65 miles north-northeast. 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 Raritan | View |
|---|---|---|---|
| KDVN Quad Cities, IA | 65 mi north-northeast | 5,100 ft | Good — most storms and steady rain or snow show clearly |
| KILX Lincoln, IL | 87 mi east-southeast | 7,800 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KLSX St. Louis, MO | 138 mi south | 15,900 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 Raritan
Since 1950, NOAA has recorded 110 tornadoes within 25 miles of Raritan, 19 of them EF2/F2 or stronger. Most came in April and May. The strongest was an F4 on May 13, 1995, which passed about 2 miles south-southeast of town. The most recent was an EF1 on June 3, 2025, which passed about 17 miles northeast of town.
Hail: 280 reports of 1-inch or larger hail within 25 miles since 1955, 21 of them 2 inches or more; the largest was 4.50-inch hail on May 13, 1995.
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 Raritan'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.
Raritan radar FAQ
Where is the nearest weather radar to Raritan, IL?
KDVN (Quad Cities, IA), about 65 miles north-northeast. KILX (Lincoln, IL) is 87 miles away and also covers the area.
Does radar show snow in Raritan?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Raritan the lowest scan from KDVN is about 5,100 ft up.
Is TALON's radar for Raritan 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 Raritan, follow it right away — see watch vs. warning.
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