Port Charles Harbour
About
Port Charles Harbour is a boat launch in Missouri, about 4 miles from Grafton, Illinois. It offers a put-in for boaters within easy reach of the Grafton area and a cluster of hiking and climbing spots just across the state line. The most comfortable stretch for time on the water tends to be late spring and early fall. At a nearby weather station, typical averages run to highs around 77°F in May and 81°F in September, while July highs average about 89°F. Within about 3 miles are the Swan Lake Levee Trail and Gilbert Lake Hiking Trail, along with climbing at Pere Marquette State Park. Paddlers can also look to Otter Creek, just under 10 miles away.
Location
St. Charles
Missouri
Data © OpenStreetMap contributors, available under the Open Database License (ODbL). View or edit on OpenStreetMap.
Facts about this place
When to go
Best time to go: Apr–May. The mildest months here, with typical highs of 68–77°F and lows of 45–56°F.
Typical monthly averages (not a forecast) from the St Charles Co Ap, MO weather station, 2.5 mi away. High / low in °F.
- Jan40° high22° low
- Feb45° high26° low
- Mar56° high34° low
- Apr68° high45° low
- May77° high56° low
- Jun86° high65° low
- Jul89° high68° low
- Aug88° high66° low
- Sep81° high57° low
- Oct69° high46° low
- Nov55° high35° low
- Dec44° high27° low
Nearby
Swan Lake Levee TrailHikingPhoto: U.S. Department of the Interior, CC BY-SA 2.0 (via Wikimedia Commons)2.5 mi
Gilbert Lake Hiking TrailHikingPhoto: pasa47, CC BY 2.0 (via Flickr)2.7 mi- E: Ryan's BalconyRock climbing2.7 mi
- Pere Marquette State ParkRock climbing2.7 mi
- D: Community Effort WallRock climbing2.7 mi
- C: Hornbein's WallRock climbing2.7 mi
- Duncan Farm TrailHiking3.1 mi
- Otter CreekCanoeing9.8 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
Best time to visit Port Charles Harbour
Best months: March–May and September–November. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
40° / 22°
7 wet
Feb
45° / 26°
7 wet
Mar
56° / 34°
10 wet
Apr
68° / 45°
11 wet
May
77° / 56°
12 wet
Jun
86° / 65°
11 wet
Jul
89° / 68°
9 wet
Aug
88° / 66°
9 wet
Sep
81° / 57°
10 wet
Oct
69° / 46°
9 wet
Nov
55° / 35°
8 wet
Dec
44° / 27°
8 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at St Charles Co Ap, MO, 2.5 mi away at 436 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Map and trail data © OpenStreetMap contributors
