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      Frost Advisory
      until 8:00 AM CDT
      Elev 499 ft, 38.360 °N 88.974 °W

      Mount Vernon, IL

      Mount Vernon Station50°
      Tue, Oct 20, 2026
      Tuesday
      Tue 10/20
      High 77°f
      5% Precip. / 0 in
      Plentiful sunshine. High 77F. Winds light and variable.
      Tuesday night
      Tue 10/20
      Low 40°f
      5% Precip. / 0 in
      Mostly clear skies. Low around 40F. Winds light and variable.
      Sunrise 7:09 AM
      Sunset 6:10 PM
      Moonrise 3:24 PM
      Moonset 1:10 AM
      Waxing Gibbous, 70% visible
      Hourly Forecast
      7:08AM
      Sunrise
      6:12PM
      Sunset
      12AM
      48°
      1AM
      46°
      2AM
      44°
      3AM
      43°
      4AM
      42°
      5AM
      41°
      6AM
      40°
      7AM
      41°
      8AM
      45°
      9AM
      53°
      10AM
      59°
      11AM
      65°
      12PM
      70°
      1PM
      73°
      2PM
      75°
      3PM
      75°
      4PM
      74°
      5PM
      72°
      6PM
      68°
      7PM
      61°
      8PM
      55°
      9PM
      52°
      10PM
      51°
      11PM
      49°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Clear
      		 48°F 48°F 2% 0in 14% 41°F 77% 1 mph E 30.32in
      1:00 am
      Clear
      		 46°F 46°F 3% 0in 13% 40°F 80% 0 mph E 30.32in
      2:00 am
      Clear
      		 44°F 44°F 3% 0in 11% 39°F 82% 1 mph ENE 30.32in
      3:00 am
      Clear
      		 43°F 43°F 3% 0in 10% 39°F 84% 0 mph ENE 30.32in
      4:00 am
      Clear
      		 42°F 42°F 4% 0in 9% 38°F 87% 0 mph ENE 30.32in
      5:00 am
      Clear
      		 41°F 41°F 5% 0in 9% 38°F 90% 1 mph NE 30.33in
      6:00 am
      Clear
      		 40°F 40°F 5% 0in 10% 38°F 90% 0 mph NE 30.34in
      7:00 am
      Clear
      		 41°F 41°F 5% 0in 11% 38°F 91% 1 mph NE 30.34in
      8:00 am
      Sunny
      		 45°F 45°F 4% 0in 10% 42°F 89% 1 mph NE 30.35in
      9:00 am
      Sunny
      		 53°F 53°F 2% 0in 10% 43°F 68% 2 mph ENE 30.36in
      10:00 am
      Sunny
      		 59°F 59°F 0% 0in 10% 41°F 52% 3 mph E 30.36in
      11:00 am
      Sunny
      		 65°F 65°F 0% 0in 14% 40°F 39% 3 mph E 30.35in
      12:00 pm
      Mostly Sunny
      		 70°F 70°F 0% 0in 21% 38°F 31% 4 mph E 30.34in
      1:00 pm
      Mostly Sunny
      		 73°F 73°F 0% 0in 22% 38°F 28% 4 mph ESE 30.32in
      2:00 pm
      Mostly Sunny
      		 75°F 75°F 0% 0in 20% 38°F 26% 4 mph ESE 30.3in
      3:00 pm
      Sunny
      		 75°F 75°F 0% 0in 16% 38°F 26% 4 mph ESE 30.29in
      4:00 pm
      Sunny
      		 74°F 74°F 0% 0in 13% 38°F 27% 4 mph ESE 30.28in
      5:00 pm
      Sunny
      		 72°F 72°F 0% 0in 12% 39°F 30% 4 mph ESE 30.27in
      6:00 pm
      Sunny
      		 68°F 68°F 0% 0in 11% 40°F 36% 3 mph ESE 30.28in
      7:00 pm
      Clear
      		 61°F 61°F 1% 0in 12% 42°F 51% 2 mph E 30.28in
      8:00 pm
      Clear
      		 55°F 55°F 1% 0in 16% 43°F 64% 1 mph ENE 30.29in
      9:00 pm
      Mostly Clear
      		 52°F 52°F 1% 0in 21% 43°F 71% 1 mph ENE 30.29in
      10:00 pm
      Mostly Clear
      		 51°F 51°F 2% 0in 25% 43°F 75% 1 mph ENE 30.29in
      11:00 pm
      Mostly Clear
      		 49°F 49°F 2% 0in 21% 43°F 78% 1 mph ENE 30.29in
      Additional Conditions
      1. Pressure 30.39 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point44°F
      5. Humidity 81%
      6. Rainfall 0.01 in
      7. Snow Depth 0 in
       KMVN Station History
      Almanac for October 17, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 69°F 67°F 90°F 1938
      4. Low 48°F 44°F 27°F 1991
      5. Rain/Snow Depth
      6. Precipitation 0 in 3.7 in -
      7. Snow 0 in 0 in -
      Almanac for October 18, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 61°F 67°F 90°F
      4. Low 38°F 44°F 20°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:06 AM 6:14 PM
      3. Civil Twilight 6:40 AM 6:41 PM
      4. Nautical Twilight 6:09 AM 7:12PM
      5. Astronomical Twilight 5:38 AM 7:42 PM
      1. Length of Visible Light 12h 1m
      2. Length of Day 11h 8m
      3. Tomorrow will be 2 minutes 22 seconds shorter
      1. Moon 1:48 PM 11:06 PM
      2. Waxing Crescent41% of the Moon is Illuminated
      Oct 18
      Waxing Half First Qtr
      Oct 25
      Full Moon
      Nov 1
      Waning Half Last Qtr
      Nov 9
      New Moon
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