My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Flash Flood Warning
      until 4:30 AM CDT
      Elev 163 ft, 40.634 °N 91.323 °W

      Fort Madison, IA

      Fort Madison Station67°
      Updated: 3:45 AM CDT on September 16, 2026 (GMT -5)
      50 seconds ago
      75°
      64°
      67
      Feels Like 67
      Rain
      N
      5
      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
        Thu 09/17
        High 75°f
         100% Precip. / 0.69 in
        Heavy rain early...then remaining cloudy with showers in the afternoon. High near 75F. Winds ENE at 5 to 10 mph. Chance of rain 100%. Rainfall near a half an inch. Localized flooding is possible.
        Tonight
        Thu 09/17
        Low 69°f
         54% Precip. / 0.11 in
        Partial cloudiness early, with scattered showers and thunderstorms overnight. Low 69F. Winds light and variable. Chance of rain 50%. Locally heavy rainfall possible.
        Tomorrow
        Fri 09/18
        High 82°f69°f
         44% Precip. / 0.26 in
        Showers in the morning, then cloudy in the afternoon. High 82F. Winds light and variable. Chance of rain 40%.
        Hourly Forecast
        Now
        66°
        4AM
        100%
        66°
        5AM
        88%
        66°
        6AM
        66°
        6:47AM
        Sunrise
        7AM
        32%
        67°
        8AM
        38%
        68°
        9AM
        78%
        69°
        10AM
        64%
        70°
        11AM
        69%
        70°
        12PM
        40%
        71°
        1PM
        37%
        72°
        2PM
        73°
        3PM
        73°
        4PM
        74°
        5PM
        74°
        6PM
        74°
        7PM
        74°
        7:12PM
        Sunset
        8PM
        71°
        9PM
        71°
        10PM
        70°
        11PM
        70°
        12AM
        70°
        1AM
        70°
        2AM
        38%
        70°
        3AM
        54%
        70°
        Precipitation
        100%
        Rain likely to continue
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        25
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.18 in
        2. Visibility 6 miles
        3. Clouds Cloudy
        4. Dew Point66°F
        5. Humidity 100%
        6. Rainfall 2.19 in
        7. Snow Depth 0 in
         KFSW Station History
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 75°F 77°F 91°F 1955
        4. Low 64°F 57°F 38°F 1984
        5. Rain/Snow Depth
        6. Precipitation 0.79 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 77°F 93°F
        4. Low 64°F 57°F 40°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:47 AM 7:12 PM
        3. Civil Twilight 6:19 AM 7:39 PM
        4. Nautical Twilight 5:47 AM 8:11PM
        5. Astronomical Twilight 5:14 AM 8:44 PM
        1. Length of Visible Light 13h 20m
        2. Length of Day 12h 25m
        3. Tomorrow will be 2 minutes 40 seconds shorter
        1. Moon 12:47 PM 9:48 PM
        2. Waxing Crescent30% 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
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareersWeather Data APIs
        PWS NetworkWundermap
        Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
        essentialaccessibility.com
        We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
        Review All Privacy and Ad Settings
        Choose how my information is shared
        Data Rights
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary