Merna, Illinois Weather
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Weather Forecast for Merna, Illinois : McLean County
Issued: 12:42 pm CDT Jun 2, 2025 Latitude: 40.5167017 Longitude: -88.8259031 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on This Afternoon Cloudy on Tonight 20% chance of thunderstorms on Tuesday 80% chance of thunderstorms on Wednesday 40% chance of thunderstorms on Thursday 40% chance of thunderstorms on Friday Mostly Sunny on Saturday 20% chance of rain on Sunday
High: 87°F Low: 65°F High: 87°F High: 78°F High: 78°F High: 77°F High: 79°F High: 80°F
Low: 66°F Low: 60°F Low: 60°F Low: 58°F Low: 58°F  
Mostly Sunny Cloudy Thunderstorms Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Rain
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Current Conditions at
BLOOMINGTON - (KBMI)
81°
Clear
as of 12:56 PM CDST
Rel. Humidity: 30%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 23 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
82°
Clear
as of 12:55 PM CDST
Rel. Humidity: 20%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 18 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
81°
Clear
as of 12:55 PM CDST
Rel. Humidity: 44%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
7 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
79°
Clear
as of 12:55 PM CDST
Rel. Humidity: 36%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
10 MPH
210° Southwest
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 87. South wind 11 to 14 mph, with gusts as high as 17 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 65. South wind 13 to 15 mph, with gusts as high as 21 mph.

20% chance of thunderstorms Tuesday Tuesday... A slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 87. Breezy, with a south southwest wind 16 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

60% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 66. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

80% chance of thunderstorms Wednesday Wednesday... Showers, with thunderstorms also possible after 1pm. High near 78. South southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

60% chance of thunderstorms Wednesday Night Wednesday Night... Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 60. Northeast wind 7 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

40% chance of thunderstorms Thursday Thursday... A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. North northeast wind around 9 mph. Chance of precipitation is 40%.

50% chance of thunderstorms Thursday Night Thursday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

40% chance of thunderstorms Friday Friday... A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 77. Chance of precipitation is 40%.

30% chance of rain Friday Night Friday Night... A 30 percent chance of showers before 1am. Mostly clear, with a low around 58.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 79.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 58.

20% chance of rain Sunday Sunday... A chance of showers. Mostly sunny, with a high near 80.

Current Radar Image


Sun Almanac for Merna, Illinois
Sunrise: 05:26 AM
Sunset: 8:20 PM
Civil Sunrise:04:54 AM
Civil Sunset: 8:53 PM
Nautical Sunrise: 04:13 AM
Nautical Sunset: 9:34 PM
Astro Sunrise: 03:25 AM
Astro Sunset: 10:22 PM
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