Race weather · 10-year data
When to race in Illinois
Typical race-day conditions for every month, averaged from 10 years of weather history across 613 upcoming race days in Illinois — the same data shown on every race page on Find The Run.
Month by month
Bars show the typical race-day range (20–83°F scale). Tap a month to browse its races.
JanJanuary
20–33°F
20% rain
10 races
FebFebruary
20–36°F
20% rain
3 races
MarMarch
32–51°F
27% rain
12 races
AprApril
41–59°F
33% rain
10 races
MayMay
49–69°F
30% rain
14 races
JunJune
62–81°F
29% rain
16 races
JulJuly
67–83°F
27% rain
8 races
AugAugust
66–82°F
25% rain
130 races
SepSeptember
61–78°F
21% rain
203 races
OctOctober
49–65°F
24% rain
120 races
NovNovember
33–48°F
19% rain
64 races
DecDecember
26–39°F
16% rain
23 races
Races in the sweet spot
Upcoming Illinois races in the best-weather months.
How this is measured: every race on Find The Run carries 10 years of weather history for its exact location and calendar date. These monthly figures average that data across all 613 upcoming race days in Illinois — real race-day conditions in the US, not city-wide monthly normals.