Jamestown, Illinois Weather
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Weather Forecast for Jamestown, Illinois : Clinton County
Issued: 3:22 am CDT Jun 4, 2025 Latitude: 38.7339364 Longitude: -89.514528 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
20% chance of thunderstorms on Overnight 80% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 70% chance of thunderstorms on Friday 20% chance of on Saturday 30% chance of thunderstorms on Sunday 20% chance of rain on Monday Sunny on Tuesday
Low: 70°F High: 80°F High: 79°F High: 80°F High: 79°F High: 82°F High: 80°F High: 81°F
Low: 67°F Low: 67°F Low: 63°F Low: 61°F Low: 64°F Low: 59°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Partly Sunny Thunderstorms Rain Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
72°
Mostly Cloudy
as of 4:55 AM CDST
Rel. Humidity: 88%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
5 MPH
230° Southwest
Cloud Level(s): Broken at 4000ft
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
73°
Mostly Cloudy
as of 5:15 AM CDST
Rel. Humidity: 73%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
12 MPH
230° Southwest
Cloud Level(s): Broken at 4300ft, Broken at 5000ft, Broken at 6500ft
Current Conditions at
SALEM-LECKRONE ARPT - (KSLO)
75°
Cloudy
as of 5:15 AM CDST
Rel. Humidity: 69%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
10 MPH
260° West
Cloud Level(s): Scattered at 3300ft, Scattered at 3900ft, Solid Overcast at 5500ft
Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
68°
Cloudy
Light Drizzle
as of 5:15 AM CDST
Rel. Humidity: 93%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
6 MPH
230° Southwest
Cloud Level(s): Scattered at 600ft, Scattered at 3800ft, Solid Overcast at 7000ft
20% chance of thunderstorms Overnight Overnight... A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 21 mph.
80% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 80. Southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
70% chance of thunderstorms Wednesday Night Wednesday Night... Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Cloudy, with a low around 67. Southwest wind 5 to 7 mph becoming light and variable. Chance of precipitation is 70%.
50% chance of thunderstorms Thursday Thursday... A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 79. North wind 5 to 7 mph.
40% chance of thunderstorms Thursday Night Thursday Night... A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 67. Light and variable wind.
70% chance of thunderstorms Friday Friday... Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 10am, then showers likely and possibly a thunderstorm after 10am. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
30% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
20% chance of Saturday Saturday... A 20 percent chance of showers. Partly sunny, with a high near 79.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 61.
30% chance of thunderstorms Sunday Sunday... A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.
20% chance of thunderstorms Sunday Night Sunday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
20% chance of rain Monday Monday... A 20 percent chance of showers. Mostly sunny, with a high near 80.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 59.
Sunny on Tuesday Tuesday... Sunny, with a high near 81.
Current Radar Image


Sun Almanac for Jamestown, Illinois
Sunrise: 05:34 AM
Sunset: 8:19 PM
Civil Sunrise:05:02 AM
Civil Sunset: 8:51 PM
Nautical Sunrise: 04:23 AM
Nautical Sunset: 9:30 PM
Astro Sunrise: 03:38 AM
Astro Sunset: 10:15 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.