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      Elev 152 ft, 48.753 °N 2.182 °E

      Jouy-en-Josas, FR

      Saclay Station66°
      Updated: 10:31 AM CEST on September 4, 2026 (GMT +2)
      3 minutes ago
      84°
      63°
      66
      Feels Like 66
      Sunny
      N
      8
      Similar 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
        Fri 09/04
        High 84°f
         1% Precip. / 0 in
        Mostly sunny. High 84F. Winds W at 10 to 20 mph.
        Tonight
        Fri 09/04
        Low 58°f
         11% Precip. / 0 in
        Cloudy. Low 58F. Winds NW at 10 to 20 mph.
        Tomorrow
        Sat 09/05
        High 77°f55°f
         5% Precip. / 0 in
        Partly cloudy. High 77F. Winds NW at 5 to 10 mph.
        Hourly Forecast
        Now
        73°
        11AM
        74°
        12PM
        77°
        1PM
        79°
        2PM
        81°
        3PM
        82°
        4PM
        82°
        5PM
        81°
        6PM
        79°
        7PM
        78°
        8PM
        75°
        8:27PM
        Sunset
        9PM
        72°
        10PM
        70°
        11PM
        68°
        12AM
        67°
        1AM
        66°
        2AM
        65°
        3AM
        64°
        4AM
        63°
        5AM
        61°
        6AM
        60°
        7AM
        59°
        7:13AM
        Sunrise
        8AM
        60°
        9AM
        62°
        10AM
        64°
        Precipitation
        11%
        Pollen
        Grass Pollen
        Low
        Air Quality
        22
        Good
        UV Index
        3
        Moderate
        Additional Conditions
        1. Pressure 30.06 in
        2. Visibility 7 miles
        3. Clouds Clear
        4. Dew Point63°F
        5. Humidity 72%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         LFPV Station History
        Almanac for September 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 84°F 73°F 87°F 2005
        4. Low 63°F 53°F 45°F 2007
        5. Rain/Snow Depth
        6. Precipitation 0 in 0.07 in -
        7. Snow 0 in - in -
        Almanac for September 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 73°F 92°F
        4. Low 63°F 53°F 44°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:12 AM 8:27 PM
        3. Civil Twilight 6:39 AM 8:59 PM
        4. Nautical Twilight 6:00 AM 9:38PM
        5. Astronomical Twilight 5:18 AM 10:20 PM
        1. Length of Visible Light 14h 20m
        2. Length of Day 13h 15m
        3. Tomorrow will be 3 minutes 29 seconds shorter
        1. Moon 11:42 PM 4:17 PM
        2. Last Quarter43% of the Moon is Illuminated
        Sep 4
        Waning Half Last Qtr
        Sep 11
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Precipitation
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