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Petersburg, IL 62675 Weather

Tonight: Partly Cloudy, low 56°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Petersburg, IL 62675 current weather

63°F

Partly Cloudy

Forecast for this hour. No recent report from a nearby station.

H -- / L 56°

No recent station report. NWS hourly forecast updated 10/28/2026, 6:41 PM PT

Hourly forecast

NWS, updated 10/28/2026, 6:41 PM PT

  1. Now63°
  2. 12 AM61°Thu
  3. 1 AM60°
  4. 2 AM60°
  5. 3 AM59°
  6. 4 AM58°
  7. 5 AM58°
  8. 6 AM57°
  9. 7 AM57°
  10. 8 AM58°
  11. 9 AM62°
  12. 10 AM68°
  13. 11 AM72°
  14. 12 PM75°
  15. 1 PM76°
  16. 2 PM77°
  17. 3 PM76°
  18. 4 PM75°
  19. 5 PM74°
  20. 6 PM69°
  21. 7 PM65°
  22. 8 PM63°
  23. 9 PM61°
  24. 10 PM59°
  25. 11 PM57°
  26. 12 AM55°Fri
  27. 1 AM54°
  28. 2 AM52°
  29. 3 AM51°
  30. 4 AM50°
  31. 5 AM50°
  32. 6 AM50°
  33. 7 AM49°22%
  34. 8 AM50°22%
  35. 9 AM55°22%
  36. 10 AM61°22%
  37. 11 AM66°22%
  38. 12 PM69°22%
  39. 1 PM72°23%
  40. 2 PM74°23%
  41. 3 PM75°23%
  42. 4 PM74°23%
  43. 5 PM72°23%
  44. 6 PM69°23%
  45. 7 PM66°17%
  46. 8 PM63°17%
  47. 9 PM61°17%
  48. 10 PM59°17%

10-day forecast

Tap a day for details

  • Today10/28Low 56°High

    Tonight: Partly cloudy, with a low around 56. South wind around 10 mph, with gusts as high as 20 mph.

    Partly Cloudy
  • Thu10/29Low 49°High 78°

    Thursday: Mostly sunny, with a high near 78. West wind around 9 mph, with gusts as high as 17 mph.

    Thursday Night: Partly cloudy, with a low around 49. North northeast wind 3 to 8 mph.

    Mostly Sunny
  • Fri10/3032% chance of precipitationLow 54°High 75°

    Friday: A slight chance of rain showers after 7am. Partly sunny, with a high near 75. East wind 5 to 8 mph.

    Friday Night: A chance of rain showers. Mostly cloudy, with a low around 54. East southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Slight Chance Rain Showers
  • Sat10/3132% chance of precipitationLow 53°High 73°

    Saturday: A chance of rain showers before 1pm. Mostly cloudy, with a high near 73. East southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: A chance of rain showers after 1am. Mostly cloudy, with a low around 53. East southeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Chance Rain Showers
  • Sun11/134% chance of precipitationLow 54°High 71°

    Sunday: A chance of rain showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.

    Sunday Night: Mostly cloudy, with a low around 54.

    Chance Rain Showers
  • Mon11/244% chance of precipitationLow 56°High 71°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 71.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 56.

    Chance Rain Showers
  • Tue11/359% chance of precipitationLow 53°High 72°

    Tuesday: Rain showers likely. Mostly cloudy, with a high near 72.

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

    Rain Showers Likely
  • Wed11/449% chance of precipitationLow High 70°

    Wednesday: A chance of rain showers. Partly sunny, with a high near 70.

    Chance Rain Showers
  • Thu11/5Model blend29% chance of precipitationLow 41°High 64°

    Thursday: Partly cloudy, slight chance of rain. High near 64°. Low that night near 41°.

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

  • Fri11/6Model blend22% chance of precipitationLow 38°High 61°

    Friday: Partly cloudy, slight chance of rain. High near 61°. Low that night near 38°.

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

Forecast for 40.020, -89.865 from the NWS ILX office, updated 10/28/2026, 6:41 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KSPI (Springfield/Lincoln Capital Arpt, 15 mi), model run 10/28/2026, 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. Now63°Partly Cloudy0%10 mph
  2. 12 AM61°Partly Cloudy0%10 mph
  3. 1 AM60°Partly Cloudy2%9 mph
  4. 2 AM60°Partly Cloudy2%9 mph
  5. 3 AM59°Partly Cloudy2%9 mph
  6. 4 AM58°Partly Cloudy2%9 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

Will it rain in Petersburg, IL 62675 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Petersburg, IL 62675?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 5 to Nov 6) come from the NOAA National Blend of Models, with highs of 61°F to 64°F. Model guidance this far out often changes.
What time is sunrise and sunset in Petersburg, IL 62675 today?
Sunrise is about 7:24 AM CDT and sunset is about 6:01 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Petersburg, IL 62675?
At Petersburg 1e, the 1991 to 2020 normal high in October is 66°F and the normal low is 43°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 tomorrow (Springfield)
GoodPM2.5
AQI forecast tomorrow (Springfield)
GoodPM2.5

UV index guide · Air quality

Drought

By county

Menard County, week of 10/20/2026

100% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
7:24 AM
Sunset
6:01 PM
Daylight
10 hr 38 min
Moon
Waning Gibbous 90% lit
First light (civil dawn)
6:56 AM
Last light (civil dusk)
6:29 PM
Moonrise
7:28 PM
Moonset
10:28 AM

Normal October weather

Climate

Normal October high 66°, low 43°, precipitation 3.19 in for the month. 1991 to 2020 normals at Petersburg 1e, 2 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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