St. Clair, Michigan Weather
St. Clair, Michigan — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for St. Clair, St. Clair County.
Full aviation weather for St. Clair is published on the St Clair County International Airport (KPHN) page, 11 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 5 airfields within reach of St. Clair have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near St. Clair: Robertson Field (KD99) 14 km · Selfridge Air National Guard Base Airport (KMTC) 37 km · Yale Airport (KD20) 40 km · Burgess Field (K55D) 57 km
Conditions reported at KPHN describe the airfield itself. Weather 11 km away can differ, particularly in terrain or near the coast. For conditions at St. Clair specifically, see the current conditions and forecast above.
About St. Clair, Michigan
St. Clair rests on the western bank of the St. Clair River, a wide, blue artery that separates Michigan from Ontario, Canada. It lies 10.8 miles south-south-west of Port Huron, MI (from Port Huron, MI: bearing 197°T), and is situated 9.6 miles south-south-east of Kimball. The land here is a gentle sweep of fertile soil, once marshy and wild, now a patchwork of fields and modest residential areas that slope towards the water. Ancient oaks and maples, their branches thick with the memory of countless seasons, stand sentinel along the riverfront, their leaves rustling with a sound like hushed secrets. In the soft light of late afternoon, the river itself seems to breathe, a slow, steady pulse reflecting the sky’s shifting moods, from a pale, washed-out blue to the deep, bruised purples of twilight. The history of St. Clair is inextricably linked to the river it calls home, a waterway that has been a highway for commerce and connection for centuries. Originally inhabited by Indigenous peoples, the area saw European settlement begin in the late 18th century, drawn by the promise of fertile land and the strategic importance of the river. For generations, St. Clair's economy was shaped by shipbuilding and lumber, industries that echoed with the clang of hammers and the scent of sawdust, leaving behind a legacy of sturdy craftsmanship. Today, while those industries have largely receded, the river remains central to St. Clair's identity, a source of recreation and a constant reminder of the town's enduring relationship with the water.
Live animated radar for St. Clair and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | St. Clair, St. Clair County, Michigan |
| Coordinates | 42.820865°N, 82.486024°W |
| Timezone | Eastern Time (America/Detroit) |
| ZIP Code(s) | 48079 |
| Area Code | 313 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This St. Clair, Michigan Weather Page
This page provides live weather conditions and forecasts for St. Clair, Michigan, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for St. Clair includes coordinates 42.820865°N, 82.486024°W, situated in St. Clair County. ZIP code 48079. Telephone area code: 313. Timezone: Eastern Time (America/Detroit).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
