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      Elev 600 ft, 40.361 °N 90.094 °W

      Lewistown, IL

      Therkildsen Field Station Station72°
      Updated: 8:58 AM CDT on September 18, 2026 (GMT -5)
      5 minutes ago
      82°
      71°
      72
      Feels Like 73
      Cloudy
      N
      9
      Lower temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Sat 09/19
        High 82°f
         15% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. High 82F. Winds E at 5 to 10 mph.
        Tonight
        Sat 09/19
        Low 71°f
         35% Precip. / 0.07 in
        Isolated thunderstorms this evening. Skies will become partly cloudy after midnight. Low 71F. Winds SE at 5 to 10 mph. Chance of rain 40%.
        Tomorrow
        Sun 09/20
        High 86°f69°f
         42% Precip. / 0.02 in
        Scattered thunderstorms in the morning, then cloudy skies late. Severe thunderstorms expected. High 86F. Winds S at 5 to 10 mph. Chance of rain 40%.
        Hourly Forecast
        Now
        72°
        9AM
        72°
        10AM
        74°
        11AM
        76°
        12PM
        77°
        1PM
        78°
        2PM
        80°
        3PM
        81°
        4PM
        81°
        5PM
        81°
        6PM
        80°
        7PM
        79°
        7:03PM
        Sunset
        8PM
        77°
        9PM
        75°
        10PM
        33%
        74°
        11PM
        36%
        73°
        12AM
        73°
        1AM
        73°
        2AM
        73°
        3AM
        72°
        4AM
        72°
        5AM
        72°
        6AM
        72°
        6:45AM
        Sunrise
        7AM
        33%
        72°
        8AM
        42%
        74°
        Precipitation
        42%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        56
        Moderate
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.19 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point69°F
        5. Humidity 90%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KCTK Station History
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 80°F 93°F 1988
        4. Low 71°F 52°F 40°F 1999
        5. Rain/Snow Depth
        6. Precipitation 0.07 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 80°F 96°F
        4. Low 71°F 52°F 36°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:44 AM 7:04 PM
        3. Civil Twilight 6:16 AM 7:31 PM
        4. Nautical Twilight 5:44 AM 8:03PM
        5. Astronomical Twilight 5:12 AM 8:35 PM
        1. Length of Visible Light 13h 14m
        2. Length of Day 12h 19m
        3. Tomorrow will be 2 minutes 39 seconds shorter
        1. Moon 2:37 PM 11:18 PM
        2. First Quarter49% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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