Farmington, MO 63640 Weather

St. Francois County7:10 PM CDT37.78°N, 90.41°W

Current conditions

Clear
67°
Clear
Feels like 67°
High 77° Saturday·Low 44° tonight
WindSE 3 mph gusts 8 mph
Humidity45%
Dew point45°
Visibility10 mi
Cloud cover3%
UV index0 Low
Sunrise7:18 AM
Sunset6:15 PM

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

Forecast

10-day

  • Tonight

    Mostly clear, with a low around 44. Southeast wind 1 to 5 mph.

  • Saturday

    Sunny, with a high near 77. Southeast wind 0 to 5 mph.

  • Saturday Night

    Partly cloudy, with a low around 45. Southeast wind 0 to 3 mph.

National Weather Service forecast updated 11 hrs ago.

Hourly

Hourly forecast
  1. Now Clear 67°
  2. 8 PM Clear 60°
  3. 9 PM Clear 57°
  4. 10 PM Clear 55°
  5. 11 PM Clear 54°
  6. Sat12 AM Clear 52°
  7. 1 AM Mostly Clear 51°
  8. 2 AM Mostly Clear 50°
  9. 3 AM Mostly Clear 49°
  10. 4 AM Mostly Clear 47°
  11. 5 AM Mostly Clear 46°
  12. 6 AM Sunny 46°
  13. 7 AM Sunny 44°
  14. 8 AM Sunny 46°
  15. 9 AM Sunny 50°
  16. 10 AM Sunny 59°
  17. 11 AM Sunny 66°
  18. 12 PM Sunny 70°
  19. 1 PM Sunny 74°
  20. 2 PM Sunny 76°
  21. 3 PM Mostly Sunny 77°
  22. 4 PM Mostly Sunny 77°
  23. 5 PM Mostly Sunny 76°
  24. 6 PM Partly Cloudy 72°

10-day forecast

Details
  1. TodayOct 23 Sunny Sunny44°77°
  2. SatOct 24 Sunny Sunny45°77°
  3. SunOct 25 Mostly Sunny Mostly Sunny46°79°
  4. MonOct 26 Partly Sunny Partly Sunny46°77°
  5. TueOct 27 Partly Sunny Partly Sunny46°76°
  6. WedOct 28 Mostly Sunny Mostly Sunny47°77°
  7. ThuOct 29 Mostly Sunny Mostly Sunny46°78°
  8. FriOct 30 Mostly sunny Mostly sunny43°65°
  9. SatOct 31 Mostly sunny Mostly sunny46°69°
  10. SunNov 1 Cloudy Cloudy55°73°

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

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Air quality

80
Moderate
Ozone

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

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 7:18 AM
Sunset 6:15 PM
Daylight 10 h 56 min (−2 min 15 s tomorrow)
Waxing Gibbous · 94% lit
Moonrise 4:40 PM Moonset 4:31 AM
Full moon Oct 26 New moon Nov 9

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 1147 AM CDT Fri Oct 23 2026

Aside from another round of fog in area river valleys Saturday morning potentially impacting KSUS and KCPS, dry and VFR flight conditions will prevail. Winds are expected to remain light and either southerly/southeasterly or variable.

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.