Weather in St. Helens
St. Helens has mild winters and pleasant summers. A typical July afternoon reaches 81°, a January night drops to 34°, and about 1 inches of snow falls in a normal winter. Normal November highs come to 52°, and lows to 38°.
Getting the latest forecast from the National Weather Service…
Where today sits in St. Helens’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 St. Helens.
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 St. Helens itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Battle Ground, WA (15 mi, snow) and Scappoose Ind Airport, OR (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.