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Storms Set to Hit Northern Illinois This Afternoon
northern Illinois, USAThursday, March 26, 2026
A swift spring storm is on its way, bringing a mix of heat and chill to northern Illinois. By mid‑afternoon temperatures may climb into the 70s, even touching low 80s just before a cold front rushes through. Once the front arrives, the heat will snap back to the 40s and 50s, with even cooler spots near Lake Michigan.
Timing & Threats
- Peak danger: 3 p.m. – 9 p.m., especially around and south of I‑80.
- Thunderstorms may begin in the early afternoon and linger into the night as the front pushes south.
- Conditions favor strong to severe storms, with hail and wind posing the main risks.
What to Expect
| Hazard | Details |
|---|---|
| Hail | 1–2 inches; rare isolated storms may drop > 2‑inch hailstones |
| Wind | Gusts ≥ 60 mph in strongest cells; can snap branches and cause localized damage |
| Tornadoes | Low chances, but unstable atmosphere may produce powerful supercells that could merge into a line |
| Rain | 1–2 inches south of the Kankakee River, making roads slick |
| Post‑Front Winds | North‑facing winds up to 40 mph, windy and chilly evenings near Lake Michigan |
Friday Outlook
- Cooler day with highs in the low to mid‑40s; even lower near the lake.
- Gradual warming expected over the weekend, with temperatures climbing back into the 70s early next week.
Stay safe and keep an eye on local weather updates.
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