Oswego, IL Live Doppler Radar

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

Open live radar for Oswego What TALON shows

What weather hits Oswego?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 99 days in the Kendall forecast zone and Kendall County — the most common reported hazard around Oswego, mostly in June and July. Next come heavy snow & winter storms (38 days) and extreme cold & wind chill (19 days).

Hazard	Days reported	Most recent	Worst on record
Damaging thunderstorm winds	99	Jun 2026	Jun 21, 2010 · $200,000 damage
Heavy snow & winter storms	38	Nov 2025	—
Extreme cold & wind chill	19	Jan 2026	—
Flooding	16	Jul 2024	—
Flash flooding	16	Aug 2025	Sep 14, 2008 · $2.0 million damage
Excessive heat	12	Jun 2026	—
High winds	10	Feb 2019	Oct 26, 2010 · $100,000 damage
Blizzards	4	Feb 2011	—

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 Kendall forecast zone and Kendall County; damage is as reported, not adjusted for inflation.

How much snow does Oswego get?

A normal year brings about 28 inches of snow to Oswego, based on NOAA's 1991–2020 climate normals for the Aurora weather station 6.9 miles away. The snowiest month is usually January (9.1 in).

Oct	Nov	Dec	Jan	Feb	Mar	Apr	May
0.0	1.3	6.4	9.1	7.9	2.6	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 Oswego?

The closest NEXRAD Doppler radar is KLOT (Chicago, IL), about 14 miles east-southeast. 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 Oswego	View
KLOT Chicago, IL	14 mi east-southeast	800 ft	Excellent — the lowest scan sees close to the ground
KMKX Milwaukee/Sullivan, WI	89 mi north	8,100 ft	Fair — the beam can pass over shallow snow and low-level rotation
KDVN Quad Cities, IA	116 mi west	12,100 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 Oswego

Since 1950, NOAA has recorded 191 tornadoes within 25 miles of Oswego, 28 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F5 on August 28, 1990, which crossed near town and caused 29 deaths. The most recent was an EF0 on March 19, 2025, which touched down about 20 miles southeast of town.

Hail: 526 reports of 1-inch or larger hail within 25 miles since 1955, 39 of them 2 inches or more; the largest was 4.75-inch hail on June 10, 2015.

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 Oswego'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.

Oswego radar FAQ

Where is the nearest weather radar to Oswego, IL?

KLOT (Chicago, IL), about 14 miles east-southeast. KMKX (Milwaukee/Sullivan, WI) is 89 miles away and also covers the area.

Does radar show snow in Oswego?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Oswego the lowest scan from KLOT is about 800 ft up.

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

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