St. John, Missouri Weather
St. John, Missouri — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for St. John, St. Louis County.
Full aviation weather for St. John is published on the St. Louis Lambert International Airport (KSTL) page, 5 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 St. John 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. John: Creve Coeur Airport (K1H0) 14 km · St Louis Downtown Airport (KCPS) 23 km · St Charles County Regional Airport/Smartt Field (KSET) 25 km · Spirit of St Louis Airport (KSUS) 27 km · St Louis Regional Airport (KALN) 32 km
Conditions reported at KSTL describe the airfield itself. Weather 5 km away can differ, particularly in terrain or near the coast. For conditions at St. John specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for St. John.
About St. John, Missouri
St. John lies cradled by the rolling Ozark hills, a place where the air often carries the scent of damp earth and pine needles. It lies 4.3 miles south-south-east of Hazelwood, MO (from Hazelwood, MO: bearing 160°T), and is situated 9.9 miles north-west of St. Louis. The landscape here is a study in subtle greens and browns, the land rising and falling with a gentle, persistent grace. Broadleaf trees, their branches reaching towards a sky that can shift from a pale, washed-out blue to a bruised, dramatic grey, form a dense canopy for much of the year. Creeks, sometimes mere trickles over smooth stones and at other times swollen with rain, carve their way through the terrain, their banks often softened by ferns and moss. The roads, mostly unpaved, wind like hesitant thoughts through this country, inviting exploration rather than demanding speed. The history of St. John is deeply entwined with the land and the resources it has yielded. For generations, this region has been shaped by those who worked the soil and mined its hidden veins, their efforts leaving a quiet imprint on the character of St. John. The local economy, once more reliant on timber and lead, now finds its pulse in a mixture of small-scale farming and the enduring resilience of its people. While no grand monuments dominate the skyline, the sturdy, unadorned homes and the familiar hum of pickup trucks speak of a life lived with a practical, down-to-earth spirit. The late afternoon sun often casts a warm, honeyed light across the fields, a fleeting beauty that seems to resonate with the enduring spirit of this place.
Live animated radar for St. John 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. John, St. Louis County, Missouri |
| Coordinates | 38.712746°N, 90.344245°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 63114 |
| Area Code | 314 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This St. John, Missouri Weather Page
This page provides live weather conditions and forecasts for St. John, 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 St. John includes coordinates 38.712746°N, 90.344245°W, situated in St. Louis County. ZIP code 63114. 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.
