Union, MO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, MO in one place.
Sunny, with a high near 89. Northeast wind around 3 mph.
Local Weather Overview
This forecast page for Union, MO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 6:28 PM CDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Union, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 6:28 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Monday looks like the warmest upcoming period in Union at 94 degrees F.
Tonight is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Saturday at about 3 to 7 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 6:28 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 70. Northeast wind 0 to 3 mph.
Sunny, with a high near 90. Northeast wind around 2 mph.
Mostly clear, with a low around 70. East wind around 1 mph.
Showers and thunderstorms likely after 7am. Mostly sunny, with a high near 90. Wind around 0 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Chance of precipitation is 40%.
Sunny, with a high near 92.
Mostly clear, with a low around 74.
Sunny, with a high near 93.
Mostly clear, with a low around 73.
Sunny, with a high near 94.
Mostly clear, with a low around 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 14
|
Sunny
|
89°F |
3 mph
NE
|
|
Tonight
Jul 14
|
Mostly Clear
|
70°F |
0 to 3 mph
NE
|
|
Wednesday
Jul 15
|
Sunny
|
90°F |
2 mph
NE
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
70°F |
1 mph
E
|
|
Thursday
Jul 16
|
Showers And Thunderstorms Likely
|
90°F |
0 mph
|
|
Thursday Night
Jul 16
|
Showers And Thunderstorms Likely then Partly Cloudy
|
71°F |
0 mph
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
90°F |
1 to 5 mph
W
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
2 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
92°F |
3 to 7 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
74°F |
3 mph
W
|
|
Sunday
Jul 19
|
Sunny
|
93°F |
5 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
73°F |
2 mph
SW
|
|
Monday
Jul 20
|
Sunny
|
94°F |
6 mph
W
|
|
Monday Night
Jul 20
|
Mostly Clear
|
73°F |
5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.