Hazardous Weather Conditions
Current conditions at
Wittman Regional Airport (KOSH)
Lat: 43.97°NLon: 88.56°WElev: 801ft.
Fog
53°F
12°C
| Humidity | 96% |
| Wind Speed | N 8 mph |
| Barometer | 29.68 in (1004.9 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 0.15 mi |
| Wind Chill | 50°F (10°C) |
| Last update | 15 Apr 6:53 am CDT |
Extended Forecast for
Eureka WI
Dense Fog Advisory April 15, 07:21am until April 15, 10:00am
NOW until 10:00am Wed

Dense Fog Advisory
Today

High: 64 °F
Showers
Likely and
Areas Dense
FogTonight

Low: 49 °F
Showers
Likely and
Patchy FogThursday

High: 64 °F
Chance
Showers and
Areas FogThursday Night

Low: 48 °F
Mostly Clear
Friday
High: 75 °F
Partly Sunny
then Chance
RainFriday Night

Low: 43 °F
Rain
Saturday

High: 52 °F
Chance Rain
Saturday Night
Low: 30 °F
Slight Chance
Rain/Snow
then Slight
Chance Snow
Detailed Forecast
Today
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 64. Light and variable wind becoming east northeast 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 49. East northeast wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of rain after 1pm. Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. North wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly clear, with a low around 48. South southeast wind 3 to 5 mph.
Friday
A chance of rain between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. Partly sunny, with a high near 75. South southeast wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Friday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 43. Chance of precipitation is 90%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 52.
Saturday Night
A slight chance of rain before 10pm, then a slight chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Sunday
A 20 percent chance of snow before 1pm. Mostly sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 67.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Eureka WI
44°N 88.83°W (Elev. 797 ft)
44°N 88.83°W (Elev. 797 ft)
6:07 am CDT Apr 15, 2026
7am CDT Apr 15, 2026-6pm CDT Apr 21, 2026



