De Soto, MO Weather

Jefferson County5:14 AM CDT38.14°N, 90.56°WElevation 525 ft

Current conditions

Mostly Cloudy
47°
Mostly Cloudy
Feels like 47°
High 76°·Low 46° tonight
WindSW 1 mph
Humidity83%
Dew point42°
Visibility10.0 mi
Cloud cover65%
UV index0 Low
Sunrise7:17 AM
Sunset6:18 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Tonight

    Partly cloudy, with a low around 46. South wind around 3 mph.

  • Wednesday

    Mostly sunny, with a high near 76. Northwest wind around 3 mph.

  • Wednesday Night

    Mostly clear, with a low around 47. South wind 0 to 3 mph.

National Weather Service forecast updated 17 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Cloudy 47°
  2. 6 AM Partly Sunny 47°
  3. 7 AM Partly Sunny 47°
  4. 8 AM Partly Sunny 48°
  5. 9 AM Sunny 55°
  6. 10 AM Sunny 62°
  7. 11 AM Sunny 68°
  8. 12 PM Sunny 71°
  9. 1 PM Sunny 73°
  10. 2 PM Sunny 74°
  11. 3 PM Sunny 75°
  12. 4 PM Sunny 75°
  13. 5 PM Mostly Sunny 73°
  14. 6 PM Mostly Clear 68°
  15. 7 PM Mostly Clear 63°
  16. 8 PM Clear 60°
  17. 9 PM Clear 57°
  18. 10 PM Clear 55°
  19. 11 PM Clear 54°
  20. Thu12 AM Mostly Clear 53°
  21. 1 AM Mostly Clear 51°
  22. 2 AM Mostly Clear 48°
  23. 3 AM Mostly Clear 47°
  24. 4 AM Clear 45°

10-day forecast

Details
  1. TueOct 20 Sunny Sunny46°73°
  2. TodayOct 21 Mostly Sunny Mostly Sunny47°76°
  3. ThuOct 22 Sunny Sunny44°77°
  4. FriOct 23 Sunny Sunny45°75°
  5. SatOct 24 Mostly Sunny Mostly Sunny49°76°
  6. SunOct 25 Partly Sunny Partly Sunny48°78°
  7. MonOct 26 Partly Sunny Partly Sunny45°75°
  8. TueOct 27 Cloudy Cloudy54°70°
  9. WedOct 28 Cloudy Cloudy52°63°
  10. ThuOct 29 Cloudy Cloudy48°62°

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

Radar

Full map
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Weather news in Missouri

More weather news

Air quality

11
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Bonne Terre, MO reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:17 AM
Sunset 6:18 PM
Daylight 11 h 0 min (−2 min 20 s tomorrow)
Waxing Gibbous · 76% lit
Moonrise 3:52 PM Moonset 2:25 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in LSX, issued 2 hrs ago

Key Messages

- Seasonably warm and dry weather will last through this weekend.

Short Term

Issued at 257 AM CDT Wed Oct 21 2026

No significant changes have been made to the forecast. The mid-level omega blocking pattern and surface high pressure influence will keep our sensible weather consistently dry, and insolation will act as the sole driver for our gradually warming temperatures. Expect highs generally in the mid-70s today and tomorrow with lows in the 40s to low-50s in between.

Long Term

Issued at 257 AM CDT Wed Oct 21 2026

The pattern begins to change late this week. A mid-level longwave trough circling over the Four Corners area is expected to split, with its poleward section phasing into another trough traversing western Canada. This shift will pull a cold front into the Upper Midwest Saturday and orient it zonally on Sunday as the shortwave zips into eastern Canada. The Mid-Mississippi Valley will remain well south of the cold front over the weekend, and our temperature trends will reflect that. LREF probabilities of 1pm temperatures >69 degrees Saturday and Sunday both range from 75-100%, and the NBM max temperature spread for each day is only 3 degrees. The cold front is expected to finally push into the region on Tuesday, but cooler weather is not guaranteed especially for locations south of I-70. Guidance suggests that the front may be weakening as it arrives, and that it may become stationary before it clears the area. This would mean that less cool air would filter into less of the CWA and that the warm streak may continue through Tuesday. Confidence in this, or for any solution, is still very low given the timeframe in question. Again, the NBM max temperature spread reflects this well as it climbs to 10+ degrees on Tuesday and nearly 20 degrees on Wednesday.

Aviation

Issued at 1000 PM CDT Tue Oct 20 2026

Mainly dry and VFR conditions are expected through the period with light winds.

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.