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Illiniwek Forest Preserve

Mountain bike trail conditions · Illinois 41.559° N  90.405° W   650 FT Verified

STAY OFF: Active damage risk

Thu 24 Drying to Caution.

Recent rain
1.8″ of rain, 2h ago
Today
71°Fheavy rain
  • Thu 9/10, no measurable rain, modeled conditions: PRIME
  • Fri 9/11, no measurable rain, modeled conditions: PRIME
  • Sat 9/12, no measurable rain, modeled conditions: PRIME
  • Sun 9/13, no measurable rain, modeled conditions: PRIME
  • Mon 9/14, no measurable rain, modeled conditions: PRIME
  • Tue 9/15, 0.19 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Wed 9/16, 0.09 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Thu 9/17, 0.08 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Fri 9/18, no measurable rain, modeled conditions: PRIME
  • Sat 9/19, 0.13 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Today, Sun 9/20, 1.66 inches of rain, modeled conditions: PRIME then STAY OFF
  • Mon 9/21, 0.22 inches of rain, modeled conditions: STAY OFF
  • Tue 9/22, 0.44 inches of rain, modeled conditions: STAY OFF
  • Wed 9/23, no measurable rain, modeled conditions: STAY OFF
  • Thu 9/24, no measurable rain, modeled conditions: STAY OFF then CAUTION, forecast preview, beyond the free window
  • Fri 9/25, no measurable rain, modeled conditions: CAUTION, forecast preview, beyond the free window

Updated Sep 20, 2026, 14:18 UTC. Modeled hourly. Verdict last changed: Sep 20. Official closures and current trail conditions take priority.

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Is Illiniwek Forest Preserve rideable today?

Not right now. The live verdict is STAY OFF: the ground is wet enough that riding would damage the trail. 1.8″ of rain, 2h ago.

CHANGED
Sun 207am
Rain moved in. Verdict dropped to STAY OFF.
Sat 195pm
Dried back to PRIME.
Sat 191pm
Rain moved in. Verdict dropped to CAUTION.
Over the tracked history, Illiniwek Forest Preserve has been rideable on 8 of the last 10 days, under a caution advisory on 1, and too wet to ride on 1. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Illiniwek Forest Preserve

Illiniwek Forest Preserve is a mountain bike trail network in Illinois. The soil is loam and drains well. Heavy tree cover can slow drying after rain. The terrain averages a 3.4° slope at 650 ft and mainly faces NW. Its gentle slopes drain slowly, so low spots can stay soft after rain.

How we check ourselves

How these factors affect drying

SoilLoam

Loam balances drainage with water retention, so it typically takes a day or two to dry after meaningful rain.

CanopyDense 87%

Heavy tree cover shades the soil and blocks wind, so these trails dry slowly and can hold morning damp even after dry days.

TerrainModerate

Terrain here drains at a moderate pace. It neither sheds nor holds water strongly.

FAQ

Can you ride Illiniwek Forest Preserve right now?

The current estimate for Illiniwek Forest Preserve is STAY OFF: active damage risk. No rideable window yet. More rain arrives before the trail finishes drying. 1.8″ of rain, 2h ago.

Is Illiniwek Forest Preserve muddy right now?

Likely. The current estimate is STAY OFF: the ground is wet enough that riding could leave ruts. 1.8″ of rain, 2h ago.

What is the soil and trail surface like at Illiniwek Forest Preserve?

Illiniwek Forest Preserve sits on loam soil that drains well. Loam balances drainage with water retention, so it typically takes a day or two to dry after meaningful rain.

How long does Illiniwek Forest Preserve take to dry after rain?

Illiniwek Forest Preserve usually needs about a day or two to dry after meaningful rain. Its terrain drains at a moderate pace. Heavy tree cover slows drying further.

Can you ride Illiniwek Forest Preserve after rain?

Drying time depends on how much rain fell and the weather that follows. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

Does Illiniwek Forest Preserve get snow in winter?

Rarely. Illiniwek Forest Preserve sits low and mild enough (around 650 ft) that snow seldom affects riding; conditions are driven by rain and drying. Loam still flags FROZEN on the rare freeze.

What's the terrain and elevation like at Illiniwek Forest Preserve?

Illiniwek Forest Preserve sits at roughly 650 feet, faces mostly NW, and averages a 3.4° grade with about 87% tree cover. It is exposed to afternoon sun, and the gentle terrain leaves low spots soft after storms.

When is the best time of year to ride Illiniwek Forest Preserve?

Snow rarely affects Illiniwek Forest Preserve. Check recent rain and allow time for the ground to dry. The live verdict above reflects today.

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Network profile

Network profile

Soil
Loamdrains well
Drainage
Moderateeven drying
Tree cover
87%Dense
Elevation
650 ft
Average grade
3.4°
Predominant aspect
NW-facing

Around Illiniwek Forest Preserve

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