Mark, IL Live Doppler Radar

Live radar for Mark, Putnam County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for Mark What TALON shows

What weather hits Mark?

Since 1996, the National Weather Service has logged heavy snow or a winter storm on 60 days in the Putnam forecast zone and Putnam County — the most common reported hazard around Mark, mostly in January and December. Next come damaging thunderstorm winds (56 days) and extreme cold & wind chill (13 days).

Hazard	Days reported	Most recent	Worst on record
Heavy snow & winter storms	60	Nov 2025	—
Damaging thunderstorm winds	56	May 2026	Apr 30, 2003 · $3.0 million damage
Extreme cold & wind chill	13	Jan 2019	—
High winds	9	Feb 2019	Apr 6, 1997 · $100,000 damage
Ice storms & sleet	9	Feb 2019	Dec 11, 2007 · $50,000 damage
Flash flooding	9	May 2020	Jul 12, 2008 · $50,000 damage
Blizzards	6	Mar 2026	—
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 Putnam forecast zone and Putnam County; damage is as reported, not adjusted for inflation.

How much snow does Mark get?

A normal year brings about 29 inches of snow to Mark, based on NOAA's 1991–2020 climate normals for the Peru weather station 9.8 miles away. The snowiest month is usually December (8.7 in).

Oct	Nov	Dec	Jan	Feb	Mar	Apr	May
0.2	0.9	8.7	8.6	5.5	4.0	0.6	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 Mark?

The closest NEXRAD Doppler radar is KLOT (Chicago, IL), about 65 miles east-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 Mark	View
KLOT Chicago, IL	65 mi east-northeast	5,100 ft	Good — most storms and steady rain or snow show clearly
KDVN Quad Cities, IA	73 mi west-northwest	6,000 ft	Fair — the beam can pass over shallow snow and low-level rotation
KILX Lincoln, IL	77 mi south	6,500 ft	Fair — the beam can pass over shallow snow and low-level rotation

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 Mark

Since 1950, NOAA has recorded 97 tornadoes within 25 miles of Mark, 23 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F3 on April 20, 2004, which crossed near town and caused 8 deaths. The most recent was an EF1 on July 14, 2024, which touched down about 11 miles south-southwest of town.

Hail: 235 reports of 1-inch or larger hail within 25 miles since 1955, 19 of them 2 inches or more; the largest was 4.00-inch hail on July 13, 2004.

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 Mark'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.

Mark radar FAQ

Where is the nearest weather radar to Mark, IL?

KLOT (Chicago, IL), about 65 miles east-northeast. KDVN (Quad Cities, IA) is 73 miles away and also covers the area.

Does radar show snow in Mark?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Mark the lowest scan from KLOT is about 5,100 ft up.

Is TALON's radar for Mark 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 Mark, follow it right away — see watch vs. warning.

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