Union, MS Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, MS in one place.
Sunny. High near 99, with temperatures falling to around 95 in the afternoon. Heat index values as high as 106. West wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Union, MS 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 27, 2026 4:35 PM CDT.
The active forecast window currently covers Jul 27 to Aug 2, 2026 for Union, MS.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 27 to Aug 2, 2026
- Latest sync
- Jul 27, 2026 4:35 PM CDT
- Forecast office
- JAN
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Tuesday looks like the warmest upcoming period in Union at 100 degrees F.
Sunday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for This Afternoon at about 5 mph W.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 27, 2026 4:35 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- JAN
- Radar station
- KDGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 77. Heat index values as high as 102. West wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 100. Heat index values as high as 108. West northwest wind around 5 mph.
Mostly clear, with a low around 77. Heat index values as high as 106. West southwest wind 0 to 5 mph.
Mostly sunny, with a high near 99. West northwest wind around 5 mph.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 75. West wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95. North northwest wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. West wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. West northwest wind 0 to 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 40%.
A chance of rain showers before 7am, then showers and thunderstorms likely between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 27
|
Sunny
|
99°F |
5 mph
W
|
|
Tonight
Jul 27
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
77°F |
0 to 5 mph
W
|
|
Tuesday
Jul 28
|
Sunny
|
100°F |
5 mph
WNW
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
77°F |
0 to 5 mph
WSW
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
99°F |
5 mph
WNW
|
|
Wednesday Night
Jul 29
|
Chance Showers And Thunderstorms
|
75°F |
0 to 5 mph
W
|
|
Thursday
Jul 30
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
95°F |
0 to 5 mph
NNW
|
|
Thursday Night
Jul 30
|
Chance Showers And Thunderstorms
|
73°F |
0 to 5 mph
W
|
|
Friday
Jul 31
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
0 to 5 mph
WNW
|
|
Friday Night
Jul 31
|
Chance Showers And Thunderstorms
|
74°F |
0 to 5 mph
SSE
|
|
Saturday
Aug 1
|
Showers And Thunderstorms Likely
|
91°F |
5 mph
SW
|
|
Saturday Night
Aug 1
|
Showers And Thunderstorms Likely
|
73°F |
5 mph
SW
|
|
Sunday
Aug 2
|
Chance Showers And Thunderstorms
|
90°F |
5 mph
WSW
|
|
Sunday Night
Aug 2
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
72°F |
0 to 5 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.
