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Janesville Weather Warning NWS WEATHER ALERT FOR THE JANESVILLE, WI AREA - Issued: 634 PM CDT Mon Sep 21 2026 Janesville Weather Warning

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Weather for Janesville, WIJanesville, WI Weather & Current Conditions

53545 Weather (Janesville, WI)

Janesville, WI WeatherCurrent Conditions and Weather for Janesville, Wisconsin
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Mostly Cloudy at Janesville (53545), temperature is 55°F13°C, dew point 50°F10°C, humidity 81%. Wind direction is ENE at 10 mphat 16 km/h with visibility of 10 mi16 km. Barometric pressure is 30.2 in1023 mb. Last update: 8:07 pm.*
*Time is approximately 8:07 pm Mon, Sep 21, 2026. Time will be within 15 minutes of current local time. Janesville weather forecast data is updated every 15 minutes.

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The Visitor - I can enter your home 'cause I bring my own light, I will find you there sleeping through the long night, The closer I get the louder I seem, I am lightning I am thunder I will enter your dream. ―Guy Lawrence
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Janesville WI Weather - 9:07 pm

Janesville Weather Forecast

Weather forecast for: Janesville WI
Last Update: 7:33 pm CDT Sep 21, 2026
Tonight: A 40 percent chance of showers, mainly before 9pm. Mostly cloudy, with a low around 51. Northeast wind 5 to 10 mph.
Tuesday: A 30 percent chance of showers, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Northeast wind 10 to 15 mph.
Tuesday Night: Increasing clouds, with a low around 47. Northeast wind around 5 mph.
Wednesday: Partly sunny, with a high near 64. East wind 5 to 10 mph.
Wednesday Night: Partly cloudy, with a low around 49. East wind around 5 mph becoming calm in the evening.
Thursday: Partly sunny, with a high near 65. Calm wind becoming east around 5 mph in the morning.
Thursday Night: Mostly cloudy, with a low around 48. East wind around 5 mph becoming calm in the evening.
Friday: Partly sunny, with a high near 65. Calm wind becoming east around 5 mph in the afternoon.
Friday Night: Mostly cloudy, with a low around 47.
Saturday: Mostly cloudy, with a high near 63.
Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 67.
Sunday Night: Partly cloudy, with a low around 52.
Monday: Mostly sunny, with a high near 70.

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