Weather forecast for todayJefferson, WI

Weather forecast for today

Current condition 3:45 am CDT

  • 39°F
  • Feels like:
    39°F
Fog
Fog
  • Precipitation: 0"
  • Wind: 0mphWSW 250°
  • Humidity: 97%
  • Dewpoint: 39°F
  • Pressure: 30.39"Hg
  • Visibility: 1mi
  • UV index: 0
  • ▼
In Jefferson, currently, early commuters are facing delays due to widespread fog.
The temperature is a wintry 39.2°F. The current temperature is at the minimum expected for today.

Tuesday Oct 20, 2026

  • 70°F
  • 39°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 4mphSE 129°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 7:15 am CDT
  • Sunset: 6:04 pm CDT
  • ▼
Today, dense morning fog will gradually lift, making way for a sunny and warm afternoon.
Temperatures are forecasted to move from a peak of a pleasant 69.8°F to a low of a cold 39.2°F.
Temperatures are higher than average, more in line with September's norm of 71.8°F than with October's 58.1°F.
Sunrise will be at 7:15 am and sunset at 6:04 pm; the daylight will last for 10h and 50min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 4 pm 68°C.
Coldest period: 4 am - 6 am 39°C.

Chance of precipitation

Highest chance: 6 am - 8 am 15%.

Hourly weather forecast

  • 4 am
  • 39°F
  • Feels like:
    39°F
Foggy
Foggy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 0mphN 0°
  • Humidity: 96%
  • Pressure: 30.39"Hg
  • Visibility: 0mi
  • UV index: 0
  • ▼
  • 6 am
  • 39°F
  • Feels like:
    39°F
Foggy
Foggy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 0mphN 0°
  • Humidity: 97%
  • Pressure: 30.39"Hg
  • Visibility: 0mi
  • UV index: 0
  • ▼
Sunrise: 7:15 am
  • 8 am
  • 41°F
  • Feels like:
    41°F
Foggy
Foggy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 0mphS 180°
  • Humidity: 100%
  • Pressure: 30.42"Hg
  • Visibility: 0mi
  • UV index: 0
  • ▼
  • 10 am
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphESE 124°
  • Humidity: 74%
  • Pressure: 30.42"Hg
  • Visibility: 2mi
  • UV index: 2
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphSE 142°
  • Humidity: 53%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSSE 162°
  • Humidity: 41%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 158°
  • Humidity: 41%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphSE 130°
  • Humidity: 55%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:04 pm
  • 8 pm
  • 54°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 4mphSE 127°
  • Humidity: 73%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 3mphSE 143°
  • Humidity: 85%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, a combination of mostly clear, foggy and dull weather is predicted.
The temperature will vary between the lowest temperature of 39.2°F and the highest temperature of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
The forecasted maximum is more resembling September's typical high of 71.8°F than the average for October. The temperature low is forecasted to be close to the usual October value of 42.1°F.
Updated: Oct 20, 2026 @ 08:45:57 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 3:45 am CDT, the temperature is 39.2°F.

Today, dense morning fog will gradually lift, making way for a sunny and warm afternoon.

Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 39.2°F.
The maximum temperature will be noticeably higher than the average highest temperature of 58.1°F in October. The lowest temperature will be in line with the average low of 42.1°F.

On Tuesday, in Jefferson, sunrise will be at 7:15 am and sunset at 6:04 pm (CDT).

Today, the daylight will last for 10h and 50min.