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Byron, IL 61010 Weather

It is 52°F and mostly clear in Byron, IL 61010, observed at 12 AM CDT. Today: Rain Showers Likely, high 63°F, low 48°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Byron, IL 61010 current weather

52°F

Mostly Clear

H 63° / L 48°Feels like 52°

Observed at Rockford, Greater Rockford Airport (9.4 mi away), 10/31/2026, 12:00 AM CDT

Hourly forecast

NWS, updated 10/30/2026, 7:51 PM PT

  1. Now50°23%
  2. 2 AM50°27%
  3. 3 AM50°31%
  4. 4 AM50°34%
  5. 5 AM50°42%
  6. 6 AM50°50%
  7. 7 AM50°54%
  8. 8 AM49°58%
  9. 9 AM52°59%
  10. 10 AM55°57%
  11. 11 AM58°49%
  12. 12 PM60°40%
  13. 1 PM60°32%
  14. 2 PM62°28%
  15. 3 PM63°25%
  16. 4 PM63°22%
  17. 5 PM63°19%
  18. 6 PM61°17%
  19. 7 PM56°15%
  20. 8 PM54°15%
  21. 9 PM53°15%
  22. 10 PM53°15%
  23. 11 PM52°15%
  24. 12 AM52°15%Sun
  25. 1 AM51°15%
  26. 1 AM51°13%
  27. 2 AM51°12%
  28. 3 AM50°10%
  29. 4 AM50°10%
  30. 5 AM50°
  31. 6 AM50°
  32. 7 AM50°
  33. 8 AM54°
  34. 9 AM59°
  35. 10 AM62°
  36. 11 AM64°
  37. 12 PM65°17%
  38. 1 PM66°17%
  39. 2 PM66°17%
  40. 3 PM66°17%
  41. 4 PM64°17%
  42. 5 PM61°17%
  43. 6 PM59°
  44. 7 PM57°
  45. 8 PM55°
  46. 9 PM55°
  47. 10 PM54°
  48. 11 PM54°

10-day forecast

Tap a day for details

  • Today10/3159% chance of precipitationLow 48°High 63°

    Saturday: Rain showers likely. Cloudy, with a high near 63. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

    Overnight: A chance of rain showers. Cloudy. Low around 48, with temperatures rising to around 50 overnight. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

    Rain Showers Likely
  • Sun11/117% chance of precipitationLow 52°High 67°

    Sunday: A slight chance of rain showers after noon. Partly sunny, with a high near 67. Southeast wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Sunday Night: Mostly cloudy, with a low around 52. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Partly Sunny then Slight Chance Rain Showers
  • Mon11/269% chance of precipitationLow 56°High 66°

    Monday: Rain showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.

    Monday Night: Rain showers likely. Cloudy, with a low around 56.

    Rain Showers Likely
  • Tue11/386% chance of precipitationLow 53°High 70°

    Tuesday: Rain showers. Mostly cloudy, with a high near 70.

    Tuesday Night: Rain showers likely. Mostly cloudy, with a low around 53.

    Rain Showers
  • Wed11/453% chance of precipitationLow 47°High 66°

    Wednesday: A chance of rain showers. Mostly cloudy, with a high near 66.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 47.

    Chance Rain Showers
  • Thu11/529% chance of precipitationLow 42°High 64°

    Thursday: A chance of rain showers. Mostly cloudy, with a high near 64.

    Thursday Night: Mostly cloudy, with a low around 42.

    Chance Rain Showers
  • Fri11/615% chance of precipitationLow High 60°

    Friday: A slight chance of rain showers before noon. Partly sunny, with a high near 60.

    Slight Chance Rain Showers then Partly Sunny
  • Sat11/7Model blend11% chance of precipitationLow 39°High 62°

    Saturday: Partly cloudy. High near 62°. Low that night near 39°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend15% chance of precipitationLow 40°High 61°

    Sunday: Partly cloudy, slight chance of rain. High near 61°. Low that night near 40°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Mon11/9Model blend20% chance of precipitationLow 39°High 63°

    Monday: Partly cloudy, slight chance of rain. High near 63°. Low that night near 39°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 42.127, -89.255 from the NWS LOT office, updated 10/30/2026, 7:51 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KRFD (Rockford Intl, 10 mi), model run 10/30/2026, 9:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now50°Slight Chance Rain Showers23%5 mph
  2. 2 AM50°Chance Rain Showers27%5 mph
  3. 3 AM50°Chance Rain Showers31%5 mph
  4. 4 AM50°Chance Rain Showers34%5 mph
  5. 5 AM50°Chance Rain Showers42%5 mph
  6. 6 AM50°Chance Rain Showers50%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Byron, IL 61010 right now?
The latest observation from Rockford, Greater Rockford Airport was 52°F and mostly clear, reported at 10/31/2026, 12:00 AM CDT.
What is the high temperature today in Byron, IL 61010?
The National Weather Service forecast for saturday calls for a high near 63°F. Rain Showers Likely.
Will it rain in Byron, IL 61010 in the next 24 hours?
The hourly forecast shows a 50% chance of precipitation around 10/31/2026, 6:00 AM CDT.
What is the 10-day forecast for Byron, IL 61010?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 7 to Nov 9) come from the NOAA National Blend of Models, with highs of 61°F to 63°F. Model guidance this far out often changes.
What time is sunrise and sunset in Byron, IL 61010 today?
Sunrise is about 7:29 AM CDT and sunset is about 5:52 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Byron, IL 61010?
At Rockford Gtr Rockford AP, the 1991 to 2020 normal high in October is 62°F and the normal low is 42°F.

Nearby hazards

Illinois hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Rockford)
GoodPM2.5
AQI forecast tomorrow (Rockford)
ModeratePM2.5

UV index guide · Air quality

Drought

By county

Ogle County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:29 AM
Sunset
5:52 PM
Daylight
10 hr 23 min
Moon
Waning Gibbous 73% lit
First light (civil dawn)
7 AM
Last light (civil dusk)
6:21 PM
Moonrise
10:47 PM
Moonset
1:36 PM

Normal October weather

Climate

Normal October high 62°, low 42°, precipitation 2.63 in for the month. 1991 to 2020 normals at Rockford Gtr Rockford AP, 9 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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