River Thame, Horsenden Stream and Chalgrove Brook

High river levels may lead to flooding. River levels are high on the Chalgrove Brook through Chalgrove. Levels along the River Thame are below the flood risk threshold. Flooding of low lying land and roads in the Chalgrove area remains possible today, 12 March 2026. The forecast is for a mostly dry day today with light showers possible during the afternoon. Heavy rain is expected this evening and overnight. Friday is forecast to be mostly dry with a chance of showers. We expect levels to remain high over the coming days. River levels are sensitive to further rainfall. We are monitoring rainfall and river levels. Avoid low lying footpaths and roads near rivers, which may be flooded. Go to River Levels Online for updates on current river levels. This message will be updated by 12PM on 13 March 2026, or as the situation changes..