Lake St. Louis, Missouri Weather
Lake St. Louis, Missouri — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for Lake St. Louis, St. Charles County.
Full aviation weather for Lake St. Louis is published on the Spirit of St Louis Airport (KSUS) page, 18 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. 6 airfields within reach of Lake St. Louis 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 Lake St. Louis: Greensfield Airport (KM71) 20 km · Creve Coeur Airport (K1H0) 25 km · Washington Regional Airport (KFYG) 28 km · St Charles County Regional Airport/Smartt Field (KSET) 35 km · St. Louis Lambert International Airport (KSTL) 36 km
Conditions reported at KSUS describe the airfield itself. Weather 18 km away can differ, particularly in terrain or near the coast. For conditions at Lake St. Louis specifically, see the current conditions and forecast above.
About Lake St. Louis, Missouri
Lake St. Louis unfolds as a landscape of gentle slopes and broad horizons, where the verdant Missouri countryside meets the shimmering expanse of its namesake water. It lies 4.1 miles east-south-east of Wentzville, MO (from Wentzville, MO: bearing 121°T), and is situated 5.2 miles west-south-west of O'Fallon. The terrain, shaped by ancient geological forces, offers a pleasing undulation that guides the eye from manicured lawns and thoughtfully planned neighborhoods towards the expansive blue of the lake. Dusk here often paints the sky in hues of rose and lavender, reflecting softly on the water's surface, a quiet spectacle that seems to breathe life into the very air, lending a palpable sense of calm to the evening. The character of Lake St. Louis is one of carefully cultivated charm, a place where the whispers of nature are amplified by the deliberate design of its residential areas, creating an atmosphere of serene domesticity. The origins of Lake St. Louis are rooted in a vision for a planned community, a concept that took shape to harness the natural beauty of the area and foster a distinct way of life. Its economy, once perhaps more agrarian, has diversified, with a focus on services and retail that cater to its growing population, ensuring a steady hum of local commerce. The lake itself, more than just a geographical feature, is the heart of this locality, a hub for recreation and a constant reminder of the water's enduring presence. This community, Lake St. Louis, thrives on a sense of shared space and a commitment to maintaining the tranquil environment that drew its residents, fostering a quiet pride in its well-kept avenues and the accessible natural amenities.
Live animated radar for Lake St. Louis 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 | Lake St. Louis, St. Charles County, Missouri |
| Coordinates | 38.780938°N, 90.78836°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 63367 |
| Area Code | 314 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Lake St. Louis, Missouri Weather Page
This page provides live weather conditions and forecasts for Lake St. Louis, Missouri, 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 Lake St. Louis includes coordinates 38.780938°N, 90.788360°W, situated in St. Charles County. ZIP code 63367. Telephone area code: 314. Timezone: Central Time (America/Chicago).
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.
