Grand Mound stays cool in summer
Grand Mound has mild winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 78°, a January night drops to 34°, and about 4 inches of snow falls in a normal winter. Normal November highs come to 51°, and lows to 37°.
Getting the latest forecast from the National Weather Service…
What stands out about Grand Mound’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Grand Mound’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Grand Mound.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Grand Mound itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Olympia Airport, WA (13 mi, snow) and Centralia, WA (6 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.