Grafton Harbor
Facilities & Weather Forecast

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Grafton Harbor

Marina in United States

Located on Mile Marker 0 of the Illinois River and Mile Marker 218 of the Mississippi River, Grafton Harbor’s quest is to make your boating experience the finest! Offering 154 covered slips and over 150 uncovered slips Grafton Harbor can accommodate boats of all sizes. The Personal Watercraft Ports give your jet skis fast accessibility to the water. The ports’ in-line rollers make launching easy

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Grafton Harbor Facilities

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Electricity
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Petrol
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Diesel
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Wifi
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Showers
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Sewage
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Toilets
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Recycling
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Food
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Bar
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Boatbuilder
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Laundry
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Supermarket
38.96851 N, -90.43964 E

Grafton Harbor Information

Active Winter Community?

Yes

Manoeuvrability

Fair

Approaches & Channel Marking

Fair

Catamaran Berths

Yes

Dock Type

Floating

Depth at MLW

2 - 3m

Current/Tidal Flow

Beware

Port of Entry

No

Visitor Berths

Yes

VHF Channel

16,68

Grafton Harbor Weather Forecast

Sun
5AM - 9AM
07 December 2025
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    W 3–6 knots veering N 3-6 knots.
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    −1 to 2°C
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    UV Index: 0 - Low
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    Partly cloudy
Sun
9AM - 1PM
07 December 2025
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    N 6 knots increasing to 11 knots. Gusts up to 19 knots.
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    1°C
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    UV Index: 0 - Low
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    Partly cloudy
Sun
1PM - 5PM
07 December 2025
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    N 9–12 knots. Gusts up to 19 knots.
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    −1 to 1°C
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    UV Index: 0 - Low
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    Cloudy
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