Marine Weather and Tide Forecast for Ashland, IL
 | Sunrise 6:18 AM Sunset 7:42 PM Moonrise 5:37 AM Moonset 8:44 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
7 Day Forecast for Marine Location Near Ashland, IL
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Area Discussion for Central Illinois, IL
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FXUS63 KILX 181910 AFDILX
Area Forecast Discussion National Weather Service Lincoln IL 210 PM CDT Sat Apr 18 2026
KEY MESSAGES
- Light winds, clear skies, and temperatures dropping below 36 degrees overnight tonight will result in frost development over central and southeastern IL tonight. A Frost Advisory is in effect from 1AM to 8AM tonight/tomorrow morning. Take precautions for sensitive vegetation.
- Temperatures dropping at or below freezing tomorrow night, resulting in a Freeze Watch for tomorrow night. Take precautions for sensitive vegetation.
- Daytime temperatures will rebound into the upper 70s to mid 80s by mid week ahead of the next low pressure system late week.
DISCUSSION
Issued at 210 PM CDT Sat Apr 18 2026
[COLDER TEMPERATURES] --- The main concern in the near term is the frost potential tonight and the frost/freeze potential for Sunday night. Temperatures tonight will drop down to 33-38 degrees, with clear skies and light winds. That supports the development of frost overnight tonight, so a Frost Advisory has been issued. Tomorrow night has a 40-60% chance of below 32 degrees for lows along/northeast of a Beardstown to Terre Haute line, based off the HRRR. A Freeze Watch has been issued for tomorrow night. Being in the growing season now, precautions should be taken to protect sensitive vegetation tonight and tomorrow night.
[TEMPERATURES REBOUND] --- Cool temperatures today and tomorrow will be reinforced for Monday with a secondary cold front moving through during the day Sunday. Temperatures during the day through Monday will be slightly below normal, upper 50s to low 60s. Winds will become southerly late Monday and will increase, bringing WAA back into central and southeastern IL. By Tuesday, temperatures will have rebounded to above normal, upper 70s to mid 80s, for Tuesday into Friday ahead of the next cold frontal passage late week.
[PRECIPITATION] --- For the extended period, the forecast is widely dry through the first half of the new week. There looks to be another potent low pressure system move through late week. It could bring more rainfall and thunderstorms. At this time, severe risk isn't clear, but the CSU machine learning suggests a 5% risk for severe weather. We will continue to monitor as we enter the new week.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
Issued at 1221 PM CDT Sat Apr 18 2026
VFR conditions are expected through the 18z period. CMI should become VFR by 18z, as the back edge of the stratus deck is exiting to their east at this moment. Breezy northwesterly winds will gust to 20-30 knots today but will relax as the sun goes down. Winds will be light overnight, which will allow frost to develop in the cooler spots. Winds will pick back up by late tomorrow morning, nearing the end of the 18z TAF period.
ILX WATCHES/WARNINGS/ADVISORIES
Frost Advisory from 1 AM to 8 AM CDT Sunday for ILZ027>031- 036>038-040>057-061>063-066>068-071>073.
Area Forecast Discussion National Weather Service Lincoln IL 210 PM CDT Sat Apr 18 2026
KEY MESSAGES
- Light winds, clear skies, and temperatures dropping below 36 degrees overnight tonight will result in frost development over central and southeastern IL tonight. A Frost Advisory is in effect from 1AM to 8AM tonight/tomorrow morning. Take precautions for sensitive vegetation.
- Temperatures dropping at or below freezing tomorrow night, resulting in a Freeze Watch for tomorrow night. Take precautions for sensitive vegetation.
- Daytime temperatures will rebound into the upper 70s to mid 80s by mid week ahead of the next low pressure system late week.
DISCUSSION
Issued at 210 PM CDT Sat Apr 18 2026
[COLDER TEMPERATURES] --- The main concern in the near term is the frost potential tonight and the frost/freeze potential for Sunday night. Temperatures tonight will drop down to 33-38 degrees, with clear skies and light winds. That supports the development of frost overnight tonight, so a Frost Advisory has been issued. Tomorrow night has a 40-60% chance of below 32 degrees for lows along/northeast of a Beardstown to Terre Haute line, based off the HRRR. A Freeze Watch has been issued for tomorrow night. Being in the growing season now, precautions should be taken to protect sensitive vegetation tonight and tomorrow night.
[TEMPERATURES REBOUND] --- Cool temperatures today and tomorrow will be reinforced for Monday with a secondary cold front moving through during the day Sunday. Temperatures during the day through Monday will be slightly below normal, upper 50s to low 60s. Winds will become southerly late Monday and will increase, bringing WAA back into central and southeastern IL. By Tuesday, temperatures will have rebounded to above normal, upper 70s to mid 80s, for Tuesday into Friday ahead of the next cold frontal passage late week.
[PRECIPITATION] --- For the extended period, the forecast is widely dry through the first half of the new week. There looks to be another potent low pressure system move through late week. It could bring more rainfall and thunderstorms. At this time, severe risk isn't clear, but the CSU machine learning suggests a 5% risk for severe weather. We will continue to monitor as we enter the new week.
AVIATION /18Z TAFS THROUGH 18Z SUNDAY/
Issued at 1221 PM CDT Sat Apr 18 2026
VFR conditions are expected through the 18z period. CMI should become VFR by 18z, as the back edge of the stratus deck is exiting to their east at this moment. Breezy northwesterly winds will gust to 20-30 knots today but will relax as the sun goes down. Winds will be light overnight, which will allow frost to develop in the cooler spots. Winds will pick back up by late tomorrow morning, nearing the end of the 18z TAF period.
ILX WATCHES/WARNINGS/ADVISORIES
Frost Advisory from 1 AM to 8 AM CDT Sunday for ILZ027>031- 036>038-040>057-061>063-066>068-071>073.
Link to 1 hour of 5 minute data for KIJX
Terminal Aerodrome Forecast (TAF) for KIJX
Wind History Graph: IJX
(wind in knots)
GEOS Local Image of Midwest
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Central Illinois, IL,
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