Sinclair has a dry climate
Sinclair has cold winters and warm summers, with very little rain. A typical July afternoon reaches 85°, a January night drops to 12°. Normal November highs come to 43°, and lows to 21°.
Getting the latest forecast from the National Weather Service…
What stands out about Sinclair’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Sinclair’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 Sinclair.
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 Sinclair itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Rawlins Municipal Airport, WY (5 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.