Slightly above-average temperatures were expected to prevail throughout the county, but a chance of thunderstorms is expected to develop Wednesday and linger through next weekend, a National Weather Service forecaster said. “We’re not looking for a big soaker,” NWS meteorologist Jimmy Taeger said. “But starting Wednesday afternoon there will be a slight chance of thunderstorms developing in the mountains, increasing over the weekend. The best chances for rain will be this Saturday and Sunday.”