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Simpson, IL 62943 Weather
Today: Sunny, high 78°F, low 46°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).
Simpson, IL 62943 current weather
No recent observation or forecast for this location right now. Please check again in a few minutes.
10-day forecast
Tap a day for details
Today10/28Low 46°High 78°
Today: Sunny. High near 78, with temperatures falling to around 76 in the afternoon. South southeast wind 1 to 5 mph.
Tonight: Clear. Low around 46, with temperatures rising to around 48 overnight. South southeast wind around 1 mph.
SunnyThu10/29Low 49°High 80°
Thursday: Sunny. High near 80, with temperatures falling to around 78 in the afternoon. South southwest wind 1 to 6 mph.
Thursday Night: Mostly clear, with a low around 49. West wind around 1 mph.
SunnyFri10/30Low 55°High 81°
Friday: Mostly sunny, with a high near 81. East southeast wind 0 to 3 mph.
Friday Night: Mostly cloudy, with a low around 55. East northeast wind around 1 mph.
Mostly SunnySat10/3150% chance of precipitationLow 55°High 74°
Saturday: A slight chance of rain showers after 1pm. Mostly cloudy, with a high near 74. East southeast wind around 3 mph.
Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 55. Southeast wind around 2 mph.
Mostly Cloudy then Slight Chance Rain ShowersSun11/156% chance of precipitationLow 53°High 71°
Sunday: Rain showers likely. Mostly cloudy, with a high near 71. Southeast wind 2 to 7 mph.
Sunday Night: A slight chance of rain showers. Mostly cloudy, with a low around 53. East wind around 2 mph.
Rain Showers LikelyMon11/245% chance of precipitationLow 55°High 71°
Monday: A chance of rain showers. Mostly cloudy, with a high near 71. Southeast wind 0 to 7 mph.
Monday Night: A chance of rain showers. Mostly cloudy, with a low around 55. South southeast wind 3 to 8 mph.
Chance Rain ShowersTue11/350% chance of precipitationLow 51°High 73°
Tuesday: A chance of rain showers. Mostly cloudy, with a high near 73. South wind 8 to 12 mph, with gusts as high as 20 mph.
Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. South southeast wind around 7 mph.
Chance Rain ShowersWed11/4Model blend41% chance of precipitationLow 47°High 67°
Wednesday: Chance of rain. High near 67°. Low that night near 47°. About 0.40 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.
Thu11/5Model blend12% chance of precipitationLow 42°High 65°
Thursday: Partly cloudy. High near 65°. Low that night near 42°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Fri11/6Model blendLow High 64°
Friday: Partly cloudy. High near 64°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Forecast for 37.346, -88.745 from the NWS PAH office, updated 10/28/2026, 8:20 AM PT · Official forecast on weather.gov
Days 8 to 10: NOAA National Blend of Models, station KPAH (Paducah/Barkley Rgnl, 19 mi), model run 10/27/2026, 6:00 PM CDT
From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.
Radar and satellite
National radarNEXRAD (last 50 min) and GOES
Nearby hazards
Illinois hazardsSevere 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
Drought
By countyJohnson County, week of 10/20/2026
85% of the county is in moderate drought or worse.
Sun and moon
Local time, center of the area
- Sunrise
- 7:15 AM
- Sunset
- 6:01 PM
- Daylight
- 10 hr 46 min
- Moon
- Waning Gibbous 93% lit
- First light (civil dawn)
- 6:49 AM
- Last light (civil dusk)
- 6:28 PM
- Moonrise
- 7:34 PM
- Moonset
- 10:13 AM
Normal October weather
ClimateNormal October high 71°, low 46°, precipitation 3.84 in for the month. 1991 to 2020 normals at Dixon Springs Agric Ctr, 8 mi away.
Other places nearby
Data sources
- National Weather Service APINOAA
- National Blend of Models (NBM) text guidanceNOAA National Weather Service
- Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
- Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
- National Water Prediction ServiceNOAA National Weather Service
- WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
- UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
- AirNowU.S. Environmental Protection Agency
- NWS HeatRisk (experimental)NOAA National Weather Service
- U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
- BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
- U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
- Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
- NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
- GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research
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Frequently asked questions
- What is the high temperature today in Simpson, IL 62943?
- The National Weather Service forecast for today calls for a high near 78°F. Sunny.
- What is the 10-day forecast for Simpson, IL 62943?
- The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 64°F to 67°F and up to a 41% chance of precipitation. Model guidance this far out often changes.
- What time is sunrise and sunset in Simpson, IL 62943 today?
- Sunrise is about 7:15 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 Simpson, IL 62943?
- At Dixon Springs Agric Ctr, the 1991 to 2020 normal high in October is 71°F and the normal low is 46°F.
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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