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Ina, IL Weather
Current conditions
Observed at Mount Vernon Airport · 1 hr ago
Forecast
10-day-
Overnight
Clear. Low around 45, with temperatures rising to around 47 overnight. Wind around 0 mph.
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Thursday
Sunny. High near 77, with temperatures falling to around 75 in the afternoon. North northeast wind 0 to 5 mph.
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Thursday Night
Clear, with a low around 45. East northeast wind around 2 mph.
National Weather Service forecast updated 3 hrs ago.
Hourly
Hourly forecast- Now47°
- 6 AM46°
- 7 AM45°
- 8 AM47°
- 9 AM54°
- 10 AM63°
- 11 AM68°
- 12 PM72°
- 1 PM74°
- 2 PM75°
- 3 PM76°
- 4 PM77°
- 5 PM75°
- 6 PM72°
- 7 PM66°
- 8 PM59°
- 9 PM57°
- 10 PM55°
- 11 PM53°
- Fri12 AM52°
- 1 AM51°
- 2 AM49°
- 3 AM48°
- 4 AM47°
Daily forecast
Details- TonightOct 21Clear45°
- TodayOct 22Sunny45°77°
- FriOct 23Sunny42°75°
- SatOct 24Sunny45°75°
- SunOct 25Mostly Sunny47°77°
- MonOct 26Partly Sunny47°77°
- TueOct 27Partly Sunny45°74°
- WedOct 28Mostly Sunny71°
- ThuOct 29Sunny39°58°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Illinois
More weather news-
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A great week ahead for Central IllinoisWAND DECATUR, Ill. (WAND) – A wonderful weekend across Central Illinois carries into the start of the workweek. Overnight lows dip back into the upper 30s tonight with a small risk for patchy frost, though coverage will…
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Sun & moon
Almanac
MonthlyMt Vernon 3 Ne, records since 1895. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Carbondale 55 km
- Marion 47 km
- Mount Vernon 18 km
- Herrin 40 km
- Centralia 46 km
- Harrisburg 56 km
- West Frankfort 28 km
- Murphysboro 57 km
- Salem 53 km
- Benton 17 km
- Du Quoin 33 km
- Carterville 46 km
Forecasters' discussion
From the National Weather Service office in PAH, issued 16 hrs ago
Key Messages
- Areas of dense fog will continue late overnight into the morning hours near bodies of water.
- Generally clear and temperate conditions will remain through the weekend.
- A small chance of a shower exists early next week, though confidence is low.
Discussion
Issued at 1219 PM CDT Wed Oct 21 2026
An UL omega block has been established, with our CWA on the eastern edge of the 250 mb ridge as of 16z. As such, high surface pressure will be dominant until Monday at the earliest, leaving generally cloudless skies and seasonable, if not slightly above average, temperatures. Tuesday, long-range guidance suggests weak FROPA associated with the easterly progression of the UL trough, but vorticity and frontogenesis values are low, and 250 mb flow is only weakly perturbed. GFS and ECMWF 500 mb relative humidity prog <40%, so chances of widespread precipitation are minimal. A brief shower or two cannot be ruled out though, especially Tuesday morning in western parts of our coverage area.
Given weak surface flow, patchy areas of dense radiation fog are possible near bodies of water and in surrounding low-lying areas overnight through the morning. Widely scattered clouds tomorrow morning will not hinder the suns ability to quickly erode this fog, so expect the fog threat to be eliminated by 15z tomorrow.
Aviation
Issued at 1209 PM CDT Wed Oct 21 2026
High pressure will continue to bring calm or very light NE winds through the forecast period. Low-lying river valley fog development is expected again during the 11-13z Thursday period. Included this in the CGI and OWB TAFs where impacts are most likely. Otherwise, VFR conditions are expected.
Pah Watches
IL...None. MO...None. IN...None. KY...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 4Conservative index and reflects what the press published. Terms of use.