Illinois State Parks · Illinois
Illini State Park
Illinois State Parks · Illinois, United States
- Group sites
- Yes
- Drinking water
- Yes
- Showers
- Yes
- Pets
- Yes
- Elevation
- 554 ft
- Dark sky
- Bortle class 4
- Cell coverage
- T-Mobile good · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Nearest town
- Marseilles
- Address
- 260 East 2350th Road, Marseilles, IL 61341
- Phone
- (815) 795-2448
- Activities
- Camping, Group Camping
About
Illini State Park is an Illinois DNR state park in the Northwest region of Illinois. Camping site types: Class A (showers, electricity, vehicular access); Class B/S (showers, vehicular access, no electric). Also offers: Youth group camping. Rent-A-Camp equipment rental (a furnished large or extra-large tent, $8 or $12/stay plus the site's camping and utility fees) is offered at this park per IDNR's own Camp Classifications table. Pets ARE allowed (leashed, with water, never left unattended or in a parked vehicle) - IDNR's general statewide practice, confirmed via Starved Rock State Park's own IDNR FAQ. Reservable online through Illinois DNR's own Explore More Illinois system (camp.exploremoreil.com, redirects to the live recreation.exploremoreil.com/IllinoisWeb/ booking platform). Advance booking requires at least 3 days' notice; most sites are reservable May 1-October 31 (some year-round - confirm per park).
Fees
Class A: $20/night ($30 holiday weekends) - showers, electricity, vehicular access. Class B/S: $10/night - showers and vehicular access, no electric. Youth group (Class Y): $2/person/night, $20/day minimum. Reservation fee $5/reservation (non-refundable) plus first night's camping fee; camping fees refunded if cancelled online 3+ days before arrival. Discounts (about half the listed camping fee, full utility fee still applies) for Illinois residents 62+ or disabled with a Class 2/2A card; Illinois disabled veterans and POWs camp free aside from the utility fee; no entrance fee to any Illinois state park (dnr.illinois.gov).
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 32° | 16° | -16° | 58° | 11 of 11 |
| February | 37° | 22° | -11° | 65° | 11 of 11 |
| March | 48° | 31° | 10° | 77° | 10 of 11 |
| April | 62° | 41° | 24° | 81° | 5 of 11 |
| May | 73° | 54° | 38° | 90° | 0 of 11 |
| June | 83° | 62° | 49° | 93° | 0 of 11 |
| July | 84° | 67° | 60° | 91° | 0 of 11 |
| August | 82° | 66° | 56° | 91° | 0 of 11 |
| September | 79° | 60° | 51° | 89° | 0 of 11 |
| October | 63° | 46° | 29° | 83° | 1 of 10 |
| November | 50° | 33° | 9° | 74° | 7 of 10 |
| December | 39° | 25° | -3° | 67° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Gebhard Woods State Park · Illinois State Parks · 15 mi
- Matthiessen State Park · Illinois State Parks · 16 mi
- Starved Rock State Park · Illinois State Parks · 16 mi
- Silver Springs State Fish and Wildlife Area · Illinois State Parks · 23 mi
- Hoover Forest Preserve Campground · City, County & Regional Parks · 25 mi
All public campgrounds in Illinois · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.