Weather can be described by mathematical equations. With accurate and detailed weather observations as input, these equations are used to predict future weather.
Lake Geneva, WI
Right Now
- Humidity: 65%
- Feels Like: 49°
- Heat Index: 52°
- Wind: 6 mph
- Wind Chill: 49°
- UV Index: 2 Low
- Sunrise: 06:38:53 AM
- Sunset: 04:35:46 PM
- Dew Point: 40°
- Visibility: 10 mi
Today
Plentiful sunshine. High 64F. Winds NW at 5 to 10 mph.
Tonight
Partly cloudy skies early will give way to cloudy skies late. Low 38F. Winds light and variable.
Tomorrow
Showers in the morning, then cloudy in the afternoon. High 54F. Winds NE at 5 to 10 mph. Chance of rain 50%.
Next 12 Hours
Wind: NW @ 6 mph
Precip: 1% Chance
Humidity: 54%
Wind Chill: 56°
Heat Index: 57°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 40°
Wind: NW @ 6 mph
Precip: 0% Chance
Humidity: 44%
Wind Chill: 61°
Heat Index: 61°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 39°
Wind: NW @ 6 mph
Precip: 0% Chance
Humidity: 40%
Wind Chill: 63°
Heat Index: 63°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 38°
Wind: WNW @ 6 mph
Precip: 0% Chance
Humidity: 39%
Wind Chill: 62°
Heat Index: 62°
UV Index: 2 Low
Visibility: 10 mi
Dew Point: 37°
Wind: WNW @ 6 mph
Precip: 0% Chance
Humidity: 37%
Wind Chill: 63°
Heat Index: 63°
UV Index: 1 Low
Visibility: 10 mi
Dew Point: 36°
Wind: WNW @ 6 mph
Precip: 1% Chance
Humidity: 38%
Wind Chill: 62°
Heat Index: 62°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 36°
Wind: WNW @ 4 mph
Precip: 1% Chance
Humidity: 43%
Wind Chill: 59°
Heat Index: 59°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 36°
Wind: WNW @ 3 mph
Precip: 2% Chance
Humidity: 51%
Wind Chill: 53°
Heat Index: 53°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 35°
Wind: WNW @ 2 mph
Precip: 2% Chance
Humidity: 60%
Wind Chill: 49°
Heat Index: 49°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 35°
Wind: W @ 1 mph
Precip: 2% Chance
Humidity: 68%
Wind Chill: 45°
Heat Index: 45°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 35°
Wind: W @ 1 mph
Precip: 2% Chance
Humidity: 70%
Wind Chill: 44°
Heat Index: 44°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 35°
Wind: W @ 1 mph
Precip: 3% Chance
Humidity: 75%
Wind Chill: 42°
Heat Index: 42°
UV Index: 0 Low
Visibility: 10 mi
Dew Point: 35°
Get the daily forecast and severe weather alerts in your inbox!
There are different types of measurements depending on the type of precipitation.
Question: Why do jet aircraft wings bend upward at the end?
Small-scale weather events are a challenge for global climate models to accurately represent.
Water years don't match the calendar year, and there's a reason for that.
-
Brandi D. Addison
USA Today
A stronger-than-normal polar vortex is taking shape over the North Pole. That might sound like a recipe for a brutally cold winter, but it isn't that simple.
The summer was a dry one, too, as only a few areas in western and southern Wisconsin saw above-normal precipitation.
- Ignacio Calderon and Doyle Rice USA Today
The United States’ scorching summer of 2026 was a record-breaker, scientists from the National Oceanic and Atmospheric Administration announced Sept. 9.
- KEITH WEIR Reuters
Both July and August are on track to be the warmest on record, reflecting a trend of rising temperatures across the country.
Why doesn't gravity bring clouds down? Why are some clouds flat on the bottom and fluffy on top?
- TEAGAN KING
Wisconsin’s 2026 total also includes four EF-3s, a rarity for the state.
The eye is one of the storm’s most recognizable features, but it is not the most dangerous part. That distinction belongs to the eyewall, the ring of towering thunderstorms that surrounds the eye.

