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      Elev 951 ft, 41.683 °N 93.794 °W

      Grimes, IA

      Grimes Station64°
      Updated: 12:36 AM CDT on September 20, 2026 (GMT -5)
      6 minutes ago
      77°
      73°
      64
      Feels Like 64
      Thunderstorm
      N
      12
      Gusts 19 mph
      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
        Tonight
        Sun 09/20
        Low 62°f
         100% Precip. / 0.44 in
        Showers and thundershowers likely. Potential for severe thunderstorms. Low 62F. Winds N at 10 to 15 mph. Chance of rain 100%.
        Tomorrow
        Mon 09/21
        High 64°f
         59% Precip. / 0.04 in
        Cloudy in the morning, then off and on rain showers during the afternoon hours. High 64F. Winds NE at 10 to 15 mph. Chance of rain 60%.
        Tomorrow night
        Mon 09/21
        Low 57°f
         73% Precip. / 0.33 in
        Cloudy with periods of rain. Low 57F. Winds ENE at 10 to 15 mph. Chance of rain 70%. Rainfall around a quarter of an inch.
        Hourly Forecast
        Now
        64°
        1AM
        99%
        64°
        2AM
        87%
        63°
        3AM
        43%
        63°
        4AM
        39%
        64°
        5AM
        42%
        64°
        6AM
        64°
        7AM
        63°
        7:00AM
        Sunrise
        8AM
        63°
        9AM
        63°
        10AM
        63°
        11AM
        62°
        12PM
        63°
        1PM
        63°
        2PM
        64°
        3PM
        31%
        64°
        4PM
        37%
        63°
        5PM
        49%
        63°
        6PM
        59%
        62°
        7PM
        60%
        62°
        7:15PM
        Sunset
        8PM
        62%
        61°
        9PM
        66%
        61°
        10PM
        60%
        61°
        11PM
        63%
        61°
        12AM
        57%
        61°
        Precipitation
        99%
        Storms continuing through 6 AM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        33
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.89 in
        2. Visibility 5 miles
        3. Clouds Cloudy
        4. Dew Point63°F
        5. Humidity 98%
        6. Rainfall 0.28 in
        7. Snow Depth 0 in
         KIKV Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 76°F 94°F 2022
        4. Low 73°F 54°F 33°F 1991
        5. Rain/Snow Depth
        6. Precipitation 0.44 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 75°F 95°F
        4. Low 73°F 53°F 35°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:00 AM 7:15 PM
        3. Civil Twilight 6:32 AM 7:43 PM
        4. Nautical Twilight 6:00 AM 8:15PM
        5. Astronomical Twilight 5:26 AM 8:49 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 14m
        3. Tomorrow will be 2 minutes 46 seconds shorter
        1. Moon 4:24 PM 12:25 AM
        2. Waxing Gibbous68% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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