Lake Koshkonong, Wisconsin Weather
Lake Koshkonong, Wisconsin — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Lake Koshkonong, Jefferson County.
Full aviation weather for Lake Koshkonong is published on the Fort Atkinson Municipal Airport (K61C) page, 10 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 Koshkonong 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 Koshkonong: Lake Lawn Airport (KC59) 40 km · Beloit Airport (K44C) 46 km · East Troy Municipal Airport (K57C) 46 km · Grand Geneva Resort Airport (KC02) 54 km · Burlington Municipal Airport (KBUU) 56 km
Conditions reported at K61C describe the airfield itself. Weather 10 km away can differ, particularly in terrain or near the coast. For conditions at Lake Koshkonong specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Lake Koshkonong.
About Lake Koshkonong, Wisconsin
Lake Koshkonong is a broad, shallow expanse of water that breathes with the prairie wind, its surface often rippled like watered silk under a sky that can shift from brilliant azure to a bruised, tempestuous grey with startling speed. It lies 16.5 miles north-north-east of Janesville, WI (from Janesville, WI: bearing 18°T), and is situated 4.4 miles west-south-west of Fort Atkinson. The landscape surrounding Lake Koshkonong is a gentle unfolding of fertile farmland, a mosaic of cornfields and soybeans that stretch to the horizon, punctuated by groves of oak and maple. Along its shores, wild rice sways in the marshy shallows, a verdant fringe that harbors a bustling community of waterfowl, their calls a constant, wild chorus. The air here carries the clean scent of damp earth and growing things, especially potent after a summer rain, and in the fading light of dusk, the water reflects the deepening hues of the sky, transforming the lake into a mirror of molten gold and deepening violet. The history of Lake Koshkonong is deeply entwined with the agricultural bounty of the land, and for generations, its fertile soil has yielded abundant harvests, supporting a robust local economy built on farming and dairy. Indigenous peoples once knew this place as a rich source of sustenance, and their legacy whispers in the rustling reeds and the stories carried on the breeze. Today, the rhythm of life at Lake Koshkonong is still largely dictated by the seasons and the turning of the earth, though a growing appreciation for its natural beauty has brought new life to its shores. Small communities dot the landscape, their quiet streets lined with modest homes and businesses, their inhabitants drawing sustenance and a sense of place from the enduring presence of the lake and the surrounding countryside. The fishing boats that glide across the water in the early morning mist are a familiar sight, a testament to the enduring connection between the people and the gifts of Lake Koshkonong.
Live animated radar for Lake Koshkonong 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 Koshkonong, Jefferson County, Wisconsin |
| Coordinates | 42.909727°N, 88.919553°W |
| Timezone | Central Time (America/Chicago) |
| ZIP Code(s) | 53538 |
| Area Code | 715 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Lake Koshkonong, Wisconsin Weather Page
This page provides live weather conditions and forecasts for Lake Koshkonong, Wisconsin, 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 Koshkonong includes coordinates 42.909727°N, 88.919553°W, situated in Jefferson County. ZIP code 53538. Telephone area code: 715. 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.
