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Waterloo, Illinois Weather

Waterloo, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery for Waterloo, Monroe 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 Waterloo. Data source: locating…

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🌿 Air Quality
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About Waterloo, Illinois

Waterloo rests in a landscape shaped by the slow, persistent erosion of ancient seas, where rolling hills, cloaked in a verdant tapestry of cornfields and woodlands, meet the broad, fertile expanse of the American Bottom. It lies 12.5 miles south-east of Oakville, MO (from Oakville, MO: bearing 138°T), and is situated 7.9 miles south-south-east of Columbia. The air here, especially in the late afternoon, carries a scent of turned earth and distant woodsmoke, a testament to the agricultural soul of the region. Mature oaks and maples stand sentinel along the country lanes, their branches creating a dappled canopy that shifts with the breeze, while the sun, as it begins its descent, bathes the western horizon in hues of apricot and rose, casting long, gentle shadows across the land. The very character of Waterloo is one of quiet resilience, a place where the vastness of the sky above seems to lend a certain spaciousness to the lives lived below. The history of Waterloo is deeply entwined with the rich agricultural heritage of Monroe County, its economy long anchored by the bounty of its fertile soil, producing grains and livestock that have sustained generations. Early settlers, drawn by the promise of this land, established communities that have since grown into the familiar streets and businesses of present-day Waterloo. The echoes of its past can be felt in the sturdy architecture of its older buildings and the enduring traditions of its people, a blend of German ancestry that contributes to a distinct local flavor. While agriculture remains a cornerstone, the surrounding area has also seen the growth of small businesses and industries, contributing to a steady, unhurried pace of life that allows for a deep connection to the land and to each other.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Waterloo 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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LocationWaterloo, Monroe County, Illinois
Coordinates38.335886°N, 90.149834°W
TimezoneCentral Time (America/Chicago)
ZIP Code(s)62298
Area Code217
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Waterloo, Illinois Weather Page

This page provides live weather conditions and forecasts for Waterloo, 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 Waterloo includes coordinates 38.335886°N, 90.149834°W, situated in Monroe County. ZIP code 62298. 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.