Illinois State Parks · Illinois

Prophetstown State Park

Illinois State Parks · Illinois, United States · in Prophetstown State Recreation Area

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Group sites
Yes
Drinking water
Yes
Showers
Yes
Pets
Yes
Elevation
636 ft
Dark sky
Bortle class 4
Cell coverage
AT&T weak · T-Mobile good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
Nearest town
Prophetstown
Address
Riverside Drive, Prophetstown, IL 61277
Phone
(815) 772-4708
Activities
Camping, Group Camping

About

Prophetstown 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. 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. No online reservation system for this site per IDNR's own live Camp Classifications table (dnr.illinois.gov/parks/camp/camp-classifications.html) - camping here is first-come, first-served, or by calling the park office directly.

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

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January29°13°-19°53°11 of 11
February35°19°-14°65°11 of 11
March49°30°3°76°10 of 11
April61°40°24°81°5 of 11
May73°53°37°88°0 of 11
June83°63°49°93°0 of 11
July84°68°58°92°0 of 11
August82°66°56°92°0 of 11
September80°60°51°91°0 of 11
October62°45°28°83°2 of 10
November50°32°6°73°7 of 10
December37°24°-8°69°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

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.