Mokena, IL
Local storm history & FEMA National Risk Index data
Mokena is rated Relatively High for overall natural hazard risk — higher risk than most US counties — based on FEMA's National Risk Index for Will County, IL. The county's highest-rated hazards are cold wave, tornado, and inland flooding.
Storm events near Mokena
NOAA-recorded tornado, hail, and flood events within 25 miles of Mokena's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Mokena itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Will County's FEMA National Risk Index scores, covering Mokena along with the rest of the county, not a Mokena-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 56.2 | Very Low |
| Inland Flooding | 97.9 | Relatively High |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 90.3 | Relatively Moderate |
| Heat Wave | 95.5 | Relatively Moderate |
| Tornado | 99.2 | Very High |
| Avalanche | — | Not Applicable |
| Cold Wave | 99.6 | Very High |
| Drought | 38.1 | Relatively Low |
| Hail | 60.6 | Relatively Low |
| Hurricane | 26.2 | Very Low |
| Ice Storm | 80.2 | Relatively Moderate |
| Landslide | 59.4 | Very Low |
| Lightning | 89.9 | Relatively High |
| Strong Wind | 50.8 | Relatively Low |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 92.2 | Relatively High |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Will County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Will County:
More on Will County:
Frequently asked questions
What natural hazards is Mokena, IL at risk of?
Mokena is rated Relatively High for overall natural hazard risk by FEMA's National Risk Index — higher risk than most US counties. The highest-rated hazards for Will County, where Mokena is located, are cold wave, tornado, and inland flooding.
What is Mokena's biggest natural hazard risk?
Cold Wave is the highest-rated hazard for Will County, where Mokena is located, scoring 99.6 out of 100 on FEMA's National Risk Index (rated "Very High").
Is Mokena a high-risk area for natural disasters?
Yes — Mokena carries higher risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively High" for Will County.
Has Mokena had tornadoes, hail, or flooding?
NOAA has recorded 82 tornado, 234 hail, 260 inland flooding events within 25 miles of Mokena since 2016.