Stilwell, Oklahoma is a small town located in Adair County, in the northeastern part of the state. The climate in Stilwell is considered humid subtropical, with hot summers and mild winters. Average temperatures range from the low 30s°F in winter to the high 90s°F in summer. Precipitation is evenly distributed throughout the year, with an average of 48 inches annually.

Hydrologically, Stilwell is situated near the Illinois River, which offers a range of recreational opportunities. The river is popular for fishing, boating, and canoeing, and there are several access points and campgrounds along its stretch. The Illinois River also provides a beautiful backdrop for hiking, bird-watching, and photography enthusiasts.

In addition to the river, Stilwell is surrounded by scenic forests and hills, offering opportunities for hiking, mountain biking, and ATV riding. There are also nearby lakes and reservoirs where visitors can enjoy water sports such as swimming, boating, and fishing.

Overall, Stilwell, Oklahoma offers a pleasant climate, abundant water resources, and various outdoor recreation opportunities, making it an ideal destination for nature lovers and outdoor enthusiasts.