National Weather Service forecast

Janesville, Illinois Weather

59°Overnight: Chance Light Rain
Wind S 14 mph
7-DayHourlyRadar

Janesville 7-Day Forecast

  1. Overnight
    59°F
    Chance Light Rain
    51% chance of precipitation

    A chance of rain. Cloudy, with a low around 59. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

  2. Wednesday
    63°F
    Chance Light Rain then Patchy Drizzle
    29% chance of precipitation

    A chance of rain before 8am, then patchy drizzle. Mostly cloudy, with a high near 63. Southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

  3. Wednesday Night
    46°F
    Patchy Drizzle then Mostly Cloudy
    10% chance of precipitation

    Patchy drizzle before 10pm. Mostly cloudy, with a low around 46. West southwest wind around 9 mph, with gusts as high as 17 mph.

  4. Thursday
    62°F
    Mostly Sunny
    3% chance of precipitation

    Mostly sunny. High near 62, with temperatures falling to around 57 in the afternoon. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.

  5. Thursday Night
    45°F
    Mostly Cloudy
    1% chance of precipitation

    Mostly cloudy, with a low around 45. West northwest wind around 5 mph.

  6. Friday
    55°F
    Partly Sunny
    5% chance of precipitation

    Partly sunny, with a high near 55. North northwest wind 6 to 10 mph, with gusts as high as 17 mph.

  7. Friday Night
    35°F
    Partly Cloudy

    Partly cloudy, with a low around 35. North northwest wind 5 to 9 mph.

  8. Saturday
    54°F
    Sunny

    Sunny, with a high near 54.

  9. Saturday Night
    33°F
    Partly Cloudy

    Partly cloudy, with a low around 33.

  10. Sunday
    59°F
    Sunny
    2% chance of precipitation

    Sunny, with a high near 59.

  11. Sunday Night
    34°F
    Clear

    Clear, with a low around 34.

  12. Monday
    63°F
    Sunny

    Sunny, with a high near 63.

  13. Monday Night
    39°F
    Clear

    Clear, with a low around 39.

  14. Tuesday
    66°F
    Sunny
    1% chance of precipitation

    Sunny, with a high near 66.

Issued by the National Weather Service (ILX office), updated .

Janesville Hourly Forecast

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About Janesville

Population (2020 Census)
76
Coordinates
39.375, -88.245
Elevation
669 ft
NWS forecast office
ILX
Time zone
America/Chicago
Sunrise today
6:24 AM CST
Sunset today
4:48 PM CST
Daylight today
10 h 25 min

Janesville Weather Questions

What is the weather forecast for Janesville, Illinois?

Overnight: A chance of rain. Cloudy, with a low around 59. South wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible. Wednesday: A chance of rain before 8am, then patchy drizzle. Mostly cloudy, with a high near 63. Southwest wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Will it rain or snow in Janesville this week?

The best chance of precipitation is Overnight at 51%. Periods with a 30% chance or more: Overnight (51%).

How warm and how cold will it get in Janesville this week?

The warmest day is Tuesday, with a high near 66°F. The coldest night is Saturday Night, with a low near 33°F.

What time are sunrise and sunset in Janesville today?

Sunrise is at 6:24 AM CST and sunset is at 4:48 PM CST, for 10 h 25 min of daylight.

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