Marine Weather and Tide Forecast for Jacksonville, IL
 | Sunrise 7:06 AM Sunset 6:29 PM Moonrise 6:08 AM Moonset 5:14 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
7 Day Forecast for Marine Location Near Jacksonville, IL
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Area Discussion for Central Illinois, IL
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FXUS63 KILX 100709 AFDILX
Area Forecast Discussion National Weather Service Lincoln IL 209 AM CDT Sat Oct 10 2026
KEY MESSAGES
- The remnants of Hurricane Isaias are expected to pass mostly southeast of IL this weekend. However, there is a 30 to 60 percent chance for light rain under a quarter inch from near I-70 southeastward tonight.
- Near record warm temperatures are expected Monday with highs from the upper 80s to lower 90s.
- A cold front Tuesday will bring a slight chance for showers and thunderstorms along with a trend toward cooler temperatures.
- Several chances for rain are possible Tuesday night through Thursday.
DISCUSSION
Issued at 209 AM CDT Sat Oct 10 2026
Remnants of Hurricane Isaias are now forecast to pass through central TN and eastern KY, with prospects of any significant precipitation in southeast IL very low. Short-range ensembles now encompassing the rainfall for central IL depict a maximum of 30 percent chance of precipitation exceeding a quarter inch near Lawrenceville, and 0 percent north of I-70. Timing looks to be from early evening to around sunrise Sunday.
Behind Isaias, a ridge will amplify into the Midwest, with dry conditions Sunday and Monday, followed by a Canadian shortwave suppressing the ridge and driving a cold front through IL Tuesday. This will bring a slight chance for showers and thunderstorms. A better chance for precipitation will develop midweek and continue through Thursday as a deep central Rockies upper low produces a strong return of gulf moisture interacting with the stalled cold front, followed by the Rockies low and a Canadian low merging and progressing toward the Midwest. The eventual evolution of the system remains highly uncertain, with various models depicting much different scenarios by next weekend, but eventually suggesting a dry pattern by the weekend.
Temperatures will be suppressed down a few degrees today and Sunday, out of near record territory, with upper 70s to mid 80s highs expected. Strong warm advection Sunday into Monday should yield near record warmth on Monday, with upper 80s to lower 90s for highs. The cold front Tuesday should bring temperatures trending downward for midweek, with temperatures down a few degrees for Tuesday, and highs in the 70s Wednesday and Thursday. Model blends trend toward further cooling Friday and Saturday, with highs in the 60s, but 5th to 95th percentile 12Z ensemble range is from highs in the 40s to 70s for Saturday.
AVIATION /06Z TAFS THROUGH 06Z SUNDAY/
Issued at 1203 AM CDT Sat Oct 10 2026
VFR conditions will prevail the next 24 hours. Expansive cloud shield with the remnants of Hurricane Isaias will overspread central Illinois with mainly ceilings above 20kft, though lowering to about 8-10kft at KDEC/KCMI Saturday evening. Any associated rain showers are expected to remain southeast of the terminals.
ILX WATCHES/WARNINGS/ADVISORIES
None.
Area Forecast Discussion National Weather Service Lincoln IL 209 AM CDT Sat Oct 10 2026
KEY MESSAGES
- The remnants of Hurricane Isaias are expected to pass mostly southeast of IL this weekend. However, there is a 30 to 60 percent chance for light rain under a quarter inch from near I-70 southeastward tonight.
- Near record warm temperatures are expected Monday with highs from the upper 80s to lower 90s.
- A cold front Tuesday will bring a slight chance for showers and thunderstorms along with a trend toward cooler temperatures.
- Several chances for rain are possible Tuesday night through Thursday.
DISCUSSION
Issued at 209 AM CDT Sat Oct 10 2026
Remnants of Hurricane Isaias are now forecast to pass through central TN and eastern KY, with prospects of any significant precipitation in southeast IL very low. Short-range ensembles now encompassing the rainfall for central IL depict a maximum of 30 percent chance of precipitation exceeding a quarter inch near Lawrenceville, and 0 percent north of I-70. Timing looks to be from early evening to around sunrise Sunday.
Behind Isaias, a ridge will amplify into the Midwest, with dry conditions Sunday and Monday, followed by a Canadian shortwave suppressing the ridge and driving a cold front through IL Tuesday. This will bring a slight chance for showers and thunderstorms. A better chance for precipitation will develop midweek and continue through Thursday as a deep central Rockies upper low produces a strong return of gulf moisture interacting with the stalled cold front, followed by the Rockies low and a Canadian low merging and progressing toward the Midwest. The eventual evolution of the system remains highly uncertain, with various models depicting much different scenarios by next weekend, but eventually suggesting a dry pattern by the weekend.
Temperatures will be suppressed down a few degrees today and Sunday, out of near record territory, with upper 70s to mid 80s highs expected. Strong warm advection Sunday into Monday should yield near record warmth on Monday, with upper 80s to lower 90s for highs. The cold front Tuesday should bring temperatures trending downward for midweek, with temperatures down a few degrees for Tuesday, and highs in the 70s Wednesday and Thursday. Model blends trend toward further cooling Friday and Saturday, with highs in the 60s, but 5th to 95th percentile 12Z ensemble range is from highs in the 40s to 70s for Saturday.
AVIATION /06Z TAFS THROUGH 06Z SUNDAY/
Issued at 1203 AM CDT Sat Oct 10 2026
VFR conditions will prevail the next 24 hours. Expansive cloud shield with the remnants of Hurricane Isaias will overspread central Illinois with mainly ceilings above 20kft, though lowering to about 8-10kft at KDEC/KCMI Saturday evening. Any associated rain showers are expected to remain southeast of the terminals.
ILX WATCHES/WARNINGS/ADVISORIES
None.
Link to 5 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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