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Union, MO 63084 Weather

Tonight: Slight Chance Showers And Thunderstorms then Mostly Cloudy, low 55°F. Hourly and 7-day forecast from the National Weather Service. Times are local (CDT).

Union, MO 63084 current weather

75°F

Mostly Cloudy

Forecast for this hour. No recent report from a nearby station.

H -- / L 55°

No recent station report. NWS hourly forecast updated 10/29/2026, 3:26 PM PT

Hourly forecast

NWS, updated 10/29/2026, 3:26 PM PT

  1. Now75°
  2. 7 PM69°12%
  3. 8 PM66°15%
  4. 9 PM64°16%
  5. 10 PM64°12%
  6. 11 PM62°
  7. 12 AM61°Fri
  8. 1 AM60°
  9. 2 AM59°
  10. 3 AM58°10%
  11. 4 AM57°12%
  12. 5 AM57°11%
  13. 6 AM56°
  14. 7 AM56°
  15. 8 AM56°
  16. 9 AM59°
  17. 10 AM62°
  18. 11 AM67°
  19. 12 PM71°
  20. 1 PM73°
  21. 2 PM76°
  22. 3 PM78°
  23. 4 PM78°
  24. 5 PM77°
  25. 6 PM74°
  26. 7 PM69°
  27. 8 PM66°
  28. 9 PM64°
  29. 10 PM63°
  30. 11 PM62°
  31. 12 AM61°Sat
  32. 1 AM60°
  33. 2 AM60°
  34. 3 AM59°
  35. 4 AM58°
  36. 5 AM57°
  37. 6 AM57°
  38. 7 AM56°13%
  39. 8 AM56°13%
  40. 9 AM58°13%
  41. 10 AM62°13%
  42. 11 AM65°13%
  43. 12 PM67°13%
  44. 1 PM69°16%
  45. 2 PM71°16%
  46. 3 PM72°16%
  47. 4 PM71°16%
  48. 5 PM69°16%

7-day forecast

Tap a day for details

  • Today10/2916% chance of precipitationLow 55°High

    Tonight: A slight chance of showers and thunderstorms between 8pm and 10pm. Mostly cloudy, with a low around 55. Wind around 0 mph. Chance of precipitation is 20%.

    Slight Chance Showers And Thunderstorms then Mostly Cloudy
  • Fri10/30Low 56°High 78°

    Friday: Partly sunny, with a high near 78. East wind around 3 mph.

    Friday Night: Mostly cloudy, with a low around 56. East wind around 2 mph.

    Partly Sunny
  • Sat10/3150% chance of precipitationLow 51°High 72°

    Saturday: A chance of rain showers after 7am. Cloudy, with a high near 72. East wind 0 to 3 mph. Chance of precipitation is 20%.

    Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 51. East wind around 2 mph. Chance of precipitation is 50%.

    Chance Rain Showers
  • Sun11/129% chance of precipitationLow 53°High 72°

    Sunday: A chance of rain showers before noon. Mostly cloudy. High near 72, with temperatures falling to around 68 in the afternoon. Chance of precipitation is 30%.

    Sunday Night: A slight chance of rain showers after midnight. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.

    Chance Rain Showers then Mostly Cloudy
  • Mon11/255% chance of precipitationLow 57°High 72°

    Monday: A chance of rain showers. Cloudy, with a high near 72. Chance of precipitation is 40%.

    Monday Night: Rain showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Chance Rain Showers
  • Tue11/369% chance of precipitationLow 53°High 73°

    Tuesday: Showers and thunderstorms likely. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.

    Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Showers And Thunderstorms Likely
  • Wed11/448% chance of precipitationLow 44°High 69°

    Wednesday: A chance of rain showers. Partly sunny, with a high near 69. Chance of precipitation is 50%.

    Wednesday Night: A slight chance of rain showers before midnight. Mostly cloudy, with a low around 44. Chance of precipitation is 20%.

    Chance Rain Showers
  • Thu11/517% chance of precipitationLow High 61°

    Thursday: A slight chance of rain showers. Mostly sunny, with a high near 61. Chance of precipitation is 20%.

    Slight Chance Rain Showers

Forecast for 38.411, -91.004 from the NWS LSX office, updated 10/29/2026, 3:26 PM PT · Official forecast on weather.gov

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now75°Mostly Cloudy6%0 mph
  2. 7 PM69°Mostly Cloudy12%0 mph
  3. 8 PM66°Slight Chance Showers And Thunderstorms15%0 mph
  4. 9 PM64°Slight Chance Showers And Thunderstorms16%0 mph
  5. 10 PM64°Mostly Cloudy12%0 mph
  6. 11 PM62°Mostly Cloudy6%0 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

Will it rain in Union, MO 63084 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What time is sunrise and sunset in Union, MO 63084 today?
Sunrise is about 7:27 AM CDT and sunset is about 6:07 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Union, MO 63084?
At Union, the 1991 to 2020 normal high in October is 70°F and the normal low is 46°F.

Nearby hazards

Missouri hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:General thunderstormsOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (St. Louis (Metro-east))
ModeratePM2.5
AQI forecast tomorrow (St. Louis (Metro-east))
GoodPM2.5

UV index guide · Air quality

Drought

By county

Franklin County, week of 10/27/2026

61% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:27 AM
Sunset
6:07 PM
Daylight
10 hr 40 min
Moon
Waning Gibbous 84% lit
First light (civil dawn)
7 AM
Last light (civil dusk)
6:35 PM
Moonrise
8:41 PM
Moonset
11:37 AM

Normal October weather

Climate

Normal October high 70°, low 46°, precipitation 3.31 in for the month. 1991 to 2020 normals at Union, 2 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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