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Jennings, MO Weather
Current conditions
Observed at St. Louis Lambert International Airport · 25 min ago
Forecast
10-day-
Thursday Night
Clear, with a low around 50. East wind around 1 mph.
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Friday
Sunny, with a high near 76. Southeast wind 1 to 6 mph.
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Friday Night
Mostly clear, with a low around 50.
National Weather Service forecast updated 1 day ago.
Hourly
Hourly forecast- Now57°
- 1 AM55°
- 2 AM54°
- 3 AM53°
- 4 AM52°
- 5 AM52°
- 6 AM51°
- 7 AM50°
- 8 AM54°
- 9 AM58°
- 10 AM62°
- 11 AM66°
- 12 PM69°
- 1 PM73°
- 2 PM74°
- 3 PM75°
- 4 PM76°
- 5 PM73°
- 6 PM71°
- 7 PM67°
- 8 PM64°
- 9 PM61°
- 10 PM59°
- 11 PM57°
10-day forecast
Details- WedOct 21Sunny49°76°
- ThuOct 22Sunny50°77°
- TodayOct 23Sunny50°76°
- SatOct 24Mostly Sunny53°77°
- SunOct 25Partly Sunny53°79°
- MonOct 26Partly Sunny52°75°
- TueOct 27Slight Chance Rain Showers18%49°68°
- WedOct 28Partly cloudy52°78°
- ThuOct 29Light rain0.05 in48°69°
- FriOct 30Sunny41°60°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Jennings
More weather news- St. Louis Weather Forecast Friday Through Thursday
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Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- FriModerate
- SatModerate
- SunModerate
St. Louis (Metro-east), IL reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlySt Louis Area, records since 1874. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- St. Louis 12 km
- O'Fallon 39 km
- Saint Charles 20 km
- Saint Peters 33 km
- Florissant 9 km
- Chesterfield 28 km
- Belleville 33 km
- Oakville 28 km
- Wildwood 38 km
- Wentzville 52 km
- University City 8 km
- Ballwin 28 km
Forecasters' discussion
From the National Weather Service office in LSX, issued 5 hrs ago
Key Messages
- Dry and seasonably warm conditions will persist through the weekend.
Short Term
Issued at 219 PM CDT Thu Oct 22 2026
A slow-moving upper-level ridge will dominate the Mid-Mississippi River Valley through the weekend with dry conditions continuing and only slight variations in above average temperatures. With a gradual exit of the surface high pressure center extending into the CWA this afternoon, the balance of airmass modification and subtle southeasterly low-level CAA through Friday followed by waves of upper-level clouds on Saturday and Sunday combined with weak southerly WAA will contribute to only slight fluctuations of high temperatures within the 70s F. Each night, the most favorable radiational cooling and coolest low temperatures in the 40s F will also become more and more confined to river valleys and southeastern MO/southwestern IL, closest to the high pressure and where clouds will be less prevalent and/or thinner. Patchy river valley fog is expected again Friday morning and potentially Saturday morning but coverage should be less.
Long Term
Issued at 219 PM CDT Thu Oct 22 2026
Global model guidance diverges considerably early to mid-next week in the evolution of an upper-level trough that propagates into the central CONUS Monday into Tuesday as the Omega Block breaks down. The track, amplitude, and tilt of this trough vary across guidance including whether an associated cold front passes through the CWA Tuesday or early Wednesday, enters and then stalls in the CWA, or stalls before reaching the CWA altogether. Accordingly, the NBM interquartile range increases to between 7 and 15 F Tuesday onward, with the 75th percentile remaining steady and the 25th percentile cooling closer to average. If the front reaches the CWA, showers will also become possible, with greatest probabilities of measurable rainfall in global ensemble models across central/northeastern MO and west-central IL at 30 to 50 percent. However, a widespread, substantial rainfall appears unlikely in the ranges of current scenarios. The aforementioned uncertainties persist through the end of the forecast period, late next week.
Aviation
Issued at 619 PM CDT Thu Oct 22 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 4Search index and reflects what the press published. Terms of use.