Illinois State Parks · Illinois
Siloam Springs State Park
Illinois State Parks · Illinois, United States
- Drinking water
- Yes
- Showers
- Yes
- Pets
- Yes
- Elevation
- 699 ft
- Dark sky
- Bortle class 1
- Cell coverage
- Verizon weak · T-Mobile none · AT&T none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Nearest town
- Clayton
- Address
- 938 East 3003rd Lane, Clayton, IL 62324
- Phone
- (217) 561-3170
- Activities
- Camping, Equestrian Camping
About
Siloam Springs State Park is an Illinois DNR state park in the West Central region of Illinois. Camping site types: Class A (showers, electricity, vehicular access); Class B/S (showers, vehicular access, no electric); Class D (tent/primitive walk-in or backpack sites, no vehicular access); Equestrian 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. Class D: $6/night - tent camping or primitive sites (walk-in or backpack), no vehicular access. Equestrian camping available (specific class/rate varies by site). 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 | 33° | 19° | -13° | 58° | 11 of 11 |
| February | 41° | 24° | -8° | 67° | 11 of 11 |
| March | 53° | 36° | 11° | 78° | 9 of 11 |
| April | 65° | 44° | 27° | 82° | 5 of 11 |
| May | 75° | 59° | 42° | 88° | 0 of 11 |
| June | 85° | 67° | 52° | 95° | 0 of 11 |
| July | 87° | 70° | 61° | 95° | 0 of 11 |
| August | 84° | 69° | 58° | 94° | 0 of 11 |
| September | 81° | 63° | 52° | 94° | 0 of 11 |
| October | 64° | 47° | 31° | 86° | 2 of 10 |
| November | 53° | 36° | 11° | 74° | 6 of 10 |
| December | 42° | 28° | -1° | 71° | 9 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
- Pittsfield City Lake Campground · City, County & Regional Parks · 20 mi · 65 sites
- Schuy-Rush Park Campground · City, County & Regional Parks · 24 mi
- Weinberg-King State Park · Illinois State Parks · 24 mi
- Wakonda State Park · Missouri State Parks · 33 mi · 94 sites
- Mississippi Park RV Campground · City, County & Regional Parks · 36 mi · 23 sites
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.