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      Heat Advisory
      until 9:00 PM CDT
      Elev 640 ft, 39.117 °N 90.324 °W

      Jerseyville, IL

      Jerseyville Station
      Updated: 6:53 AM CDT on August 15, 2026 (GMT -5)
      8 minutes ago
      92°
      77°
      76
      Feels Like 77
      Mostly Cloudy
      N
      9
      Similar temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
      Today
      Sun 08/16
      High 92°f
      31% Precip. / 0 in
      Isolated thunderstorms during the morning. Cloudy skies this afternoon. Hot and humid. High 92F. Winds S at 5 to 10 mph. Chance of rain 30%.
      Tonight
      Sun 08/16
      Low 76°f
      9% Precip. / 0 in
      Partly cloudy this evening with more clouds for overnight. Low 76F. Winds light and variable.
      Tomorrow
      Mon 08/17
      High 88°f67°f
      24% Precip. / 0 in
      Intervals of clouds and sunshine. High 88F. Winds WNW at 5 to 10 mph.
      Hourly Forecast
      Now
      77°
      7AM
      77°
      8AM
      77°
      9AM
      77°
      10AM
      78°
      11AM
      81°
      12PM
      84°
      1PM
      86°
      2PM
      88°
      3PM
      89°
      4PM
      90°
      5PM
      91°
      6PM
      90°
      7PM
      89°
      7:56PM
      Sunset
      8PM
      85°
      9PM
      83°
      10PM
      81°
      11PM
      81°
      12AM
      80°
      1AM
      80°
      2AM
      79°
      3AM
      78°
      4AM
      78°
      5AM
      77°
      6AM
      77°
      Precipitation
      24%
      Pollen
      Grass Pollen
      Low
      Air Quality
      53
      Moderate
      UV Index
      0
      Low
      Additional Conditions
      1. Pressure 30.05 in
      2. Visibility 8 miles
      3. Clouds Cloudy
      4. Dew Point74°F
      5. Humidity 92%
      6. Rainfall 0.07 in
      7. Snow Depth 0 in
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      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:14 AM 7:56 PM
      3. Civil Twilight 5:46 AM 8:24 PM
      4. Nautical Twilight 5:11 AM 8:59PM
      5. Astronomical Twilight 4:34 AM 9:35 PM
      1. Length of Visible Light 14h 38m
      2. Length of Day 13h 41m
      3. Tomorrow will be 2 minutes 15 seconds shorter
      1. Moon 9:30 AM 9:23 PM
      2. Waxing crescent9% of the Moon is Illuminated
      Aug 18
      Waxing Half First Qtr
      Aug 26
      Full Moon
      Sep 3
      Waning Half Last Qtr
      -
      -
       KSET Station History
      Almanac for August 15, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 92°F 86°F 100°F 2007
      4. Low 77°F 64°F 46°F 2004
      5. Rain/Snow Depth
      6. Precipitation 0 in 4.2 in -
      7. Snow 0 in 0 in -
      Almanac for August 16, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 88°F 85°F 103°F
      4. Low 77°F 64°F 47°F
      Precipitation
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