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St. Jacob, Illinois Weather

St. Jacob, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for St. Jacob, Madison County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Flight conditions near St. Jacob. Data source: locating…

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🌿 Air Quality
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About St. Jacob, Illinois

St. Jacob sits in a landscape that breathes with the slow, steady pulse of the American Midwest. It lies 11.4 miles north-east of O'Fallon, IL (from O'Fallon, IL: bearing 43°T), and is situated 6.3 miles east of Troy. Rolling hills, softened by decades of cultivation, give way to flatter expanses where corn and soybeans stretch towards the horizon, a verdant quilt stitched with the silver threads of drainage ditches. The air here, especially in the late afternoon, carries a scent of turned earth and drying stalks, a fragrance that clings to everything, mingling with the faint, sweet perfume of honeysuckle that often spills over weathered fences. On clear evenings, the sky above St. Jacob becomes a vast canvas, painted with hues of apricot and lavender, the stars emerging with a clarity rarely seen in more populated climes, each one a tiny, sharp pinprick against the deepening indigo. The roots of St. Jacob run deep into the rich soil, tracing back to an era when pioneers carved their livelihoods from this fertile ground. Its economy, for generations, has been intrinsically tied to agriculture, a cyclical dance of planting and harvest that dictates the rhythm of life. While the land still yields its bounty, the economic character of St. Jacob has broadened, embracing small businesses that serve the needs of its residents and attract visitors seeking a quieter pace. The nearby presence of larger metropolitan centers offers a convenient counterpoint, drawing some of its workforce while allowing St. Jacob to retain its distinct, unhurried charm, a place where neighborly waves are still a common currency.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for St. Jacob and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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LocationSt. Jacob, Madison County, Illinois
Coordinates38.713937°N, 89.76815°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)62281, 62249
Area Code217
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This St. Jacob, Illinois Weather Page

This page provides live weather conditions and forecasts for St. Jacob, Illinois, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. 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. Jacob includes coordinates 38.713937°N, 89.768150°W, situated in Madison County. ZIP code 62281, 62249. Telephone area code: 217. Timezone: Central Time (America/Chicago).

Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. 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.