National Weather Service forecast

St. Charles, Illinois Weather

59°Overnight: Rain Showers
Wind S 15 mph
7-DayHourlyRadar

St. Charles 7-Day Forecast

  1. Overnight
    59°F
    Rain Showers
    84% chance of precipitation

    Rain showers. Cloudy. Low around 59, with temperatures rising to around 62 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

  2. Wednesday
    63°F
    Chance Rain Showers then Mostly Cloudy
    26% chance of precipitation

    A chance of rain showers before noon. Mostly cloudy. High near 63, with temperatures falling to around 55 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

  3. Wednesday Night
    46°F
    Cloudy
    13% chance of precipitation

    Cloudy, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph.

  4. Thursday
    56°F
    Chance Rain Showers
    47% chance of precipitation

    A chance of rain showers after 10am. Cloudy, with a high near 56. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

  5. Thursday Night
    40°F
    Chance Rain Showers
    48% chance of precipitation

    A chance of rain showers. Cloudy, with a low around 40. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

  6. Friday
    50°F
    Partly Sunny
    12% chance of precipitation

    Partly sunny, with a high near 50.

  7. Friday Night
    33°F
    Partly Cloudy

    Partly cloudy, with a low around 33.

  8. Saturday
    51°F
    Mostly Sunny

    Mostly sunny, with a high near 51.

  9. Saturday Night
    33°F
    Mostly Clear

    Mostly clear, with a low around 33.

  10. Sunday
    56°F
    Sunny
    6% chance of precipitation

    Sunny, with a high near 56.

  11. Sunday Night
    35°F
    Mostly Clear

    Mostly clear, with a low around 35.

  12. Monday
    60°F
    Sunny

    Sunny, with a high near 60.

  13. Monday Night
    39°F
    Mostly Clear
    1% chance of precipitation

    Mostly clear, with a low around 39.

  14. Tuesday
    61°F
    Sunny

    Sunny, with a high near 61.

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

St. Charles Hourly Forecast

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About St. Charles

Population (2020 Census)
33,081
Coordinates
41.919, -88.311
Elevation
699 ft
NWS forecast office
LOT
Time zone
America/Chicago
Sunrise today
6:29 AM CST
Sunset today
4:44 PM CST
Daylight today
10 h 15 min

St. Charles Weather Questions

What is the weather forecast for St. Charles, Illinois?

Overnight: Rain showers. Cloudy. Low around 59, with temperatures rising to around 62 overnight. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. Wednesday: A chance of rain showers before noon. Mostly cloudy. High near 63, with temperatures falling to around 55 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Will it rain or snow in St. Charles this week?

The best chance of precipitation is Overnight at 84%. Periods with a 30% chance or more: Overnight (84%), Thursday (47%), Thursday Night (48%).

How warm and how cold will it get in St. Charles this week?

The warmest day is Wednesday, with a high near 63°F. The coldest night is Friday Night, with a low near 33°F.

What time are sunrise and sunset in St. Charles today?

Sunrise is at 6:29 AM CST and sunset is at 4:44 PM CST, for 10 h 15 min of daylight.

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