Although weather is just one factor, it can really affect your travel plans, especially if you're planning an extended stay in Overstreet. The hottest months are usually August and July, with an average temperature of 28°C, while the coldest months are January and February, with an average of 15°C. The rainiest months in Overstreet are August, July, June and September, with each month seeing an average of 194 mm of rainfall.