Illinois · NWS LOT office

Machesney Park, IL weather

It is 45°F and clear at Rockford, Greater Rockford Airport as of Oct 28, 4:05 AM CDT. Overnight: Mostly Clear, low near 50°F. Forecast from the National Weather Service, issued Oct 28, 3:35 AM CDT.

Updated Oct 28, 4:29 AM CDT (snapshot)

Current conditions

Temperature

45°F

Clear

Wind

Calm

Humidity 100% · dew point 45°F

Pressure · visibility

30.19 inHg

Visibility 10 mi

Observed at Rockford, Greater Rockford Airport (KRFD), Oct 28, 4:05 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Machesney Park forecast zone right now.

Around the NWS LOT forecast area

No active alerts in zones served by the LOT office near Machesney Park.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. No alerts are active anywhere in Illinois.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Machesney Park (local time)
TimeTempForecastPrecip. chanceWind
Wed 6 AM51°FSunny0% 0 mph
Wed 7 AM51°FSunny0% 0 mph
Wed 8 AM52°FSunny0%S 5 mph
Wed 9 AM56°FSunny0%S 5 mph
Wed 10 AM61°FSunny0%S 5 mph
Wed 11 AM65°FSunny0%S 10 mph
Wed 12 PM68°FSunny0%S 10 mph
Wed 1 PM71°FSunny0%S 10 mph
Wed 2 PM73°FSunny0%S 10 mph
Wed 3 PM74°FSunny0%S 15 mph
Wed 4 PM73°FMostly Sunny0%S 15 mph
Wed 5 PM71°FMostly Sunny0%S 10 mph
Wed 6 PM68°FMostly Clear0%S 10 mph
Wed 7 PM65°FMostly Clear3%S 10 mph
Wed 8 PM64°FMostly Clear3%S 10 mph
Wed 9 PM63°FMostly Clear4%S 10 mph
Wed 10 PM62°FMostly Clear8%S 10 mph
Wed 11 PM62°FPartly Cloudy9%S 15 mph
Thu 12 AM62°FPartly Cloudy12%SSW 15 mph
Thu 1 AM61°FSlight Chance Showers And Thunderstorms17%SSW 15 mph
Thu 2 AM61°FChance Showers And Thunderstorms27%SSW 15 mph
Thu 3 AM61°FChance Showers And Thunderstorms39%SW 15 mph
Thu 4 AM60°FChance Showers And Thunderstorms34%SW 15 mph
Thu 5 AM59°FChance Showers And Thunderstorms30%SW 10 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Machesney Park can differ.

7-day forecast

Overnight

Low 50°F

Mostly clear, with a low around 50. South wind around 0 mph.

Wednesday

High 74°F·Low 58°F

Sunny. High near 74, with temperatures falling to around 71 in the afternoon. South wind 0 to 15 mph, with gusts as high as 25 mph.

Wednesday Night: A slight chance of showers and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 58. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Thursday

High 68°F·Low 41°F

A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 68. West northwest wind around 10 mph. Chance of precipitation is 20%.

Thursday Night: Mostly clear, with a low around 41. North wind 0 to 5 mph.

Friday

High 62°F·Low 48°F

A slight chance of rain showers after 1pm. Partly sunny, with a high near 62. Chance of precipitation is 20%.

Friday Night: A chance of rain showers. Mostly cloudy, with a low around 48.

Saturday

High 62°F·Low 48°F

A chance of rain showers. Mostly cloudy, with a high near 62.

Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 48.

Sunday

High 66°F·Low 50°F

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

Sunday Night: A slight chance of rain showers. Mostly cloudy, with a low around 50.

Monday

High 66°F·Low 51°F

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

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 51.

Tuesday

High 66°F

Rain showers likely. Mostly cloudy, with a high near 66.

Nearby cities

Larger cities in the area

Other cities in Winnebago County

See every city we cover in Illinois, or check all active alerts.

About this forecast

Forecast office
Machesney Park is served by the National Weather Service LOT forecast office, forecast zone ILZ003, county zone ILC201.
Location used
The Census Bureau's internal point for Machesney Park (42.3677, -89.0245), in Winnebago County. Population: 22,839 (2024 estimate), number 105 of the 121 Illinois cities on this site.
Radar
Nearest NWS radar: KMKX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/42.3677,-89.0245 (forecast issued Oct 28, 3:35 AM CDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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