Union, Mississippi Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
Union weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Rain82%0.41″77°72°—
- TuesdayJun 16Rain79%0.47″79°71°+2°
- WednesdayJun 17T-storm w/ Hail31%—88°71°+9°
- ThursdayJun 18Heavy Showers69%3.2″75°69°-13°
- FridayJun 19T-storm w/ Hvy Hail68%—88°72°+13°
- SaturdayJun 20Thunderstorm35%—86°71°-2°
- SundayJun 21T-storm w/ Hail30%—89°72°+3°
AQI 25 (Good), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 7:06 AM
- Moonset
- 9:17 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Union at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: March 2 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Union
- Mon77°72°82%
- Tue79°70°79%
- Wed88°71°31%
- Thu75°69°69%
- Fri88°72°68%
- Sat86°71°35%
- Sun89°72°30%
- Mon92°71°15%
- Tue93°73°31%
- Wed93°73°35%
- Thu95°72°19%
- Fri94°72°40%
- Sat95°73°39%
- Sun91°72°52%
- Mon93°72°39%
- Tue94°73°44%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Union
SPC has placed Union in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Union
- 39365