Jacksonville, IL

Local storm history & FEMA National Risk Index data

Population: 17,801 · Part of Morgan County

Jacksonville is rated Relatively Low for overall natural hazard risk — lower risk than most US counties — based on FEMA's National Risk Index for Morgan County, IL. The county's highest-rated hazards are cold wave, drought, and strong wind.

Storm events near Jacksonville

NOAA-recorded tornado, hail, and flood events within 25 miles of Jacksonville's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Jacksonville itself, not the whole county.

Tornado 39 events
Hail 84 events
Inland Flooding 28 events

County-wide hazard risk

Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Morgan County's FEMA National Risk Index scores, covering Jacksonville along with the rest of the county, not a Jacksonville-specific figure.

Hazard NRI score Rating
Wildfire 1.8 Very Low
Inland Flooding 61.2 Relatively Low
Coastal Flooding Not Applicable
Earthquake 81.7 Relatively Low
Heat Wave 83.4 Relatively Moderate
Tornado 49.6 Relatively Low
Avalanche Not Applicable
Cold Wave 94.1 Relatively High
Drought 92.9 Relatively High
Hail 68.7 Relatively Low
Hurricane 21.9 Very Low
Ice Storm 59.3 Relatively Low
Landslide 64.2 Relatively Low
Lightning 52 Relatively Low
Strong Wind 87.2 Relatively High
Tsunami Not Applicable
Volcanic Activity Not Applicable
Winter Weather 46.3 Relatively Low

Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Morgan County risk profile for disaster declarations, social vulnerability, and climate projection data.

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Frequently asked questions

What natural hazards is Jacksonville, IL at risk of?

Jacksonville is rated Relatively Low for overall natural hazard risk by FEMA's National Risk Index — lower risk than most US counties. The highest-rated hazards for Morgan County, where Jacksonville is located, are cold wave, drought, and strong wind.

What is Jacksonville's biggest natural hazard risk?

Cold Wave is the highest-rated hazard for Morgan County, where Jacksonville is located, scoring 94.1 out of 100 on FEMA's National Risk Index (rated "Relatively High").

Is Jacksonville a high-risk area for natural disasters?

No — Jacksonville carries lower risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Low" for Morgan County.

Has Jacksonville had tornadoes, hail, or flooding?

NOAA has recorded 39 tornado, 84 hail, 28 inland flooding events within 25 miles of Jacksonville since 2016.