Rochester, IL Weather

Sangamon County1:05 PM CDT39.75°N, 89.53°WElevation 558 ft

Current conditions

Clear
72°
Clear
Feels like 71°
High 74°·Low 47°
WindSE 9 mph
Humidity43%
Dew point48°
Pressure30.30 inHg
Visibility10 mi
Cloud cover4%
Sunrise7:17 AM
Sunset6:09 PM

Observed at Springfield - Abraham Lincoln Capital Airport · 1 hr ago

Forecast

10-day

  • Friday

    Sunny, with a high near 74. Southeast wind 3 to 7 mph.

  • Friday Night

    Mostly clear, with a low around 47.

  • Saturday

    Mostly sunny, with a high near 75.

National Weather Service forecast updated 3 days ago.

Hourly

Hourly forecast
  1. Now Sunny 71°
  2. 2 PM Sunny 73°
  3. 3 PM Sunny 74°
  4. 4 PM Sunny 74°
  5. 5 PM Sunny 72°
  6. 6 PM Mostly Clear 69°
  7. 7 PM Mostly Clear 64°
  8. 8 PM Mostly Clear 62°
  9. 9 PM Mostly Clear 60°
  10. 10 PM Mostly Clear 58°
  11. 11 PM Mostly Clear 57°
  12. Sat12 AM Mostly Clear 55°
  13. 1 AM Partly Cloudy 54°
  14. 2 AM Partly Cloudy 52°
  15. 3 AM Partly Cloudy 50°
  16. 4 AM Partly Cloudy 49°
  17. 5 AM Partly Cloudy 48°
  18. 6 AM Mostly Sunny 47°
  19. 7 AM Mostly Sunny 48°
  20. 8 AM Mostly Sunny 50°
  21. 9 AM Mostly Sunny 54°
  22. 10 AM Mostly Sunny 58°
  23. 11 AM Mostly Sunny 63°
  24. 12 PM Mostly Sunny 67°

10-day forecast

Details
  1. TueOct 20 Sunny Sunny43°72°
  2. WedOct 21 Sunny Sunny45°73°
  3. ThuOct 22 Sunny Sunny47°75°
  4. TodayOct 23 Sunny Sunny47°74°
  5. SatOct 24 Mostly Sunny Mostly Sunny51°75°
  6. SunOct 25 Mostly Sunny Mostly Sunny50°76°
  7. MonOct 26 Partly Sunny Partly Sunny47°73°
  8. TueOct 27 Cloudy Cloudy50°62°
  9. WedOct 28 Cloudy Cloudy48°57°
  10. ThuOct 29 Cloudy Cloudy50°62°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Rochester

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Air quality

54
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • FriModerate
  • SatModerate
  • SunModerate

Springfield, IL reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:17 AM
Sunset 6:09 PM
Daylight 10 h 51 min (−2 min 26 s tomorrow)
Waxing Gibbous · 93% lit
Moonrise 4:36 PM Moonset 4:27 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low64° / 42°
Month to date1.21 in (normal 2.32 in)

Springfield Abraham Lincoln Capital Ap, records since 1879. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in ILX, issued 1 hr ago

Key Messages

- Sunny mild days and cool nights persist across central and southeast Illinois through Wednesday, with highs in the 70s and lows in the 40s.

- A cold front moves across the region mid to late next week, though rain chances look pretty slim (30% or less), with temperatures cooling a bit for the end of next week.

Discussion

Issued at 203 AM CDT Fri Oct 23 2026

The blocking pattern continues over the eastern half of the United States. With the ridging not going anywhere any time soon, clear skies, light winds, and dry weather will continue across the state into the next week. Overall, perfect weather for the latter half of harvest season. The main focus of this forecast continues to be the above normal temperatures and lack of rain.

Temperatures will continue to be above normal as we move into the next week. Highs will be in the mid to upper 70s. Normals for this time of year is around 62-66 degrees across central and southeastern IL. The CPC's 6-10 day, 8-14 day, and Week 3-4 outlooks all show above normal temperatures. Dry weather will last through much of the extended period as well.

Looks like a cold front will try to makes its way into IL early next week, but with how dry the airmass is, it will have a hard fight to squeeze out any impactful rainfall, if it can even make it to central IL. However, there are some <30% chances for rain for late in the week when a stronger shortwave pushes into the region, breaking down this ridging pattern we are stuck in.

Aviation

Issued at 1200 PM CDT Fri Oct 23 2026

VFR conditions to continue through Saturday, with only scattered high-level clouds at times. South/southeast winds will average 5-7 knots through the period.

Ilx Watches

None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.