Dahlgren, Illinois Weather
Dahlgren, Illinois — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Dahlgren, Hamilton County.
Full aviation weather for Dahlgren is published on the Mount Vernon Outland Airport (KMVN) page, 21 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 Dahlgren 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 Dahlgren: Benton Municipal Airport (KH96) 30 km · Fairfield Municipal Airport (KFWC) 31 km · Harrisburg-Raleigh Airport (KHSB) 45 km · Centralia Municipal Airport (KENL) 50 km · Carmi Municipal Airport (KCUL) 51 km
Conditions reported at KMVN describe the airfield itself. Weather 21 km away can differ, particularly in terrain or near the coast. For conditions at Dahlgren specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Dahlgren.
About Dahlgren, Illinois
Dahlgren rests in the gently rolling landscape of Hamilton County, a place where the sky feels vast and the earth holds a quiet resilience. It lies 45.1 miles west-north-west of Posey, IN (from Posey, IN: bearing 288°T), and is situated 14.4 miles south-east of Mount Vernon. The fields, a mosaic of corn and soybeans that turn a rich gold in the late summer sun, stretch towards horizons softened by the hazy, humid air characteristic of this part of southern Illinois. Scattered farmsteads, their white silos like sentinels against the deepening blue of twilight, punctuate the verdant expanse. The occasional stand of mature oak and hickory trees, their leaves rustling with a sound like hushed conversations, breaks the uniformity of the agricultural tapestry, offering pockets of cool shade and a sense of enduring natural presence. The story of Dahlgren is one woven from the rich soil and the industrious spirit of its people. Its economy has long been tied to the bounty of the land, with agriculture forming the bedrock of its sustenance and livelihood. Generations have worked these same fields, their lives marked by the changing seasons and the dependable rhythm of planting and harvest. While no grand monuments define its skyline, the simple, sturdy architecture of its homes and businesses speaks of a practical, community-minded character, a place where neighborly concern is as much a part of the landscape as the fertile ground itself. The quiet hum of daily life in Dahlgren is a testament to its enduring ability to thrive, a steady presence in the heart of its county.
Live animated radar for Dahlgren 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 | Dahlgren, Hamilton County, Illinois |
| Coordinates | 38.198104°N, 88.684502°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 62828 |
| Area Code | 618 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Dahlgren, Illinois Weather Page
This page provides live weather conditions and forecasts for Dahlgren, Illinois, 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 Dahlgren includes coordinates 38.198104°N, 88.684502°W, situated in Hamilton County. ZIP code 62828. Telephone area code: 618. 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.
