Jennings, MO Weather

Saint Louis County10:46 PM CDT38.72°N, 90.26°WElevation 518 ft

Current conditions

Clear
59°
Clear
Feels like 59°
High 77° Saturday·Low 50° tonight
WindE 8 mph
Humidity67%
Dew point48°
Pressure30.28 inHg
Visibility10 mi
Cloud cover14%
UV index0 Low
Sunrise7:19 AM
Sunset6:13 PM

Observed at St. Louis Lambert International Airport · 36 min ago

Forecast

10-day

  • Friday Night

    Mostly clear, with a low around 50.

  • Saturday

    Mostly sunny, with a high near 77.

  • Saturday Night

    Mostly cloudy, with a low around 53.

National Weather Service forecast updated 2 days ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 59°
  2. 11 PM Mostly Clear 57°
  3. Sat12 AM Mostly Clear 56°
  4. 1 AM Mostly Clear 55°
  5. 2 AM Mostly Clear 54°
  6. 3 AM Mostly Clear 53°
  7. 4 AM Mostly Clear 52°
  8. 5 AM Mostly Clear 51°
  9. 6 AM Sunny 50°
  10. 7 AM Sunny 50°
  11. 8 AM Mostly Sunny 53°
  12. 9 AM Mostly Sunny 57°
  13. 10 AM Mostly Sunny 61°
  14. 11 AM Mostly Sunny 65°
  15. 12 PM Mostly Sunny 69°
  16. 1 PM Mostly Sunny 73°
  17. 2 PM Mostly Sunny 75°
  18. 3 PM Mostly Sunny 77°
  19. 4 PM Mostly Sunny 77°
  20. 5 PM Mostly Sunny 75°
  21. 6 PM Partly Cloudy 72°
  22. 7 PM Mostly Cloudy 69°
  23. 8 PM Mostly Cloudy 66°
  24. 9 PM Mostly Cloudy 63°

10-day forecast

Details
  1. WedOct 21 Sunny Sunny49°76°
  2. ThuOct 22 Sunny Sunny50°77°
  3. TodayOct 23 Sunny Sunny50°76°
  4. SatOct 24 Mostly Sunny Mostly Sunny53°77°
  5. SunOct 25 Partly Sunny Partly Sunny53°79°
  6. MonOct 26 Partly Sunny Partly Sunny52°75°
  7. TueOct 27 Slight Chance Rain Showers Slight Chance Rain Showers18%49°68°
  8. WedOct 28 Partly cloudy Partly cloudy52°78°
  9. ThuOct 29 Light rain Light rain0.05 in48°69°
  10. FriOct 30 Sunny Sunny41°60°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Jennings

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Air quality

60
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • FriModerate
  • SatModerate
  • SunModerate

St. Louis (Metro-east), IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:19 AM
Sunset 6:13 PM
Daylight 10 h 54 min (−2 min 21 s tomorrow)
Waxing Gibbous · 95% lit
Moonrise 4:39 PM Moonset 4:30 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low66° / 46°
Record high86° (1939)
Record low28° (1981)
Wettest1.38 in (1976)
Yesterday76° / 50°
Month to date1.76 in (normal 2.16 in)

St Louis Area, records since 1874. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LSX, issued 5 hrs ago

Key Messages

- High pressure remains in place allowing for our dry and warm weather continues well into next week.

Short Term

Issued at 148 PM CDT Fri Oct 23 2026

An upper-level ridge will remain positioned over the Mid-Mississippi River Valley through Sunday, stagnated by the configuration of the wave pattern into an Omega Block. This pattern will result in very little change in sensible weather from day to day with seasonably warm temperatures and dry conditions. The only change through the weekend will be the very slow departure of a surface high pressure center and upper-level clouds of varying thickness streaming overhead by Saturday through Sunday. The most pronounced nocturnal radiational cooling during the period will be across southeastern MO/southwestern IL and/or river valleys with low temperatures in the 40s F and patchy morning fog, mainly low temperatures in the 50s F elsewhere. High temperatures will continue to be in the 70s F, near 80 F on Sunday depending on the thickness of cloud cover.

Long Term

Issued at 148 PM CDT Fri Oct 23 2026

Global model guidance is coming into better agreement on the ejection of an upper-level trough into the Central/Northern Plains and Upper Midwest Monday through Tuesday as the Omega Block breaks down. With this track of the trough, it is increasingly likely that the associated cold front does not reach the CWA, favoring similar, seasonably warm temperatures continuing along with dry conditions.

It is not until late next week now, that there are any signs for our sensible weather to change with varying signals for an upper-level trough to propagate into the north-central CONUS. However, the track and amplitude of the trough is uncertain which will influence its ability to force an associated cold front east/southeastward. If the front reaches the CWA, it would be accompanied by an opportunity for rain and temperatures cooling closer to average late next week. If the front fails to reach the CWA, there would be no clear catalyst for seasonably warm temperatures and dry conditions to end. Ensemble model guidance cluster analysis depicts these scenarios all being valid possible outcomes at this point. Taking all scenarios into consideration, probabilities of measurable rainfall range from 20 to 50 percent Thursday, onward, along with NBM interquartile ranges increasing to between 10 and 20 F.

Aviation

Issued at 543 PM CDT Fri Oct 23 2026

Dry and mainly VFR conditions are expected through the period. There will be some fog late tonight into early Friday in low lying areas with MVFR and possible IFR visibilities including at SUS and CPS. Otherwise winds are expected to remain light.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.