Weather World
City of Union, MOUnion, MO 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Union Weather Forecast
Union, MO Weather Forecast Date: 923 AM CDT Mon Sep 14 2026
Weather forecast for Union, MO
Today Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C |
Rest of Today... Sunny. Highs in the upper 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph. |
Tue Hi: 99°FHi: 37°C Lo: 70°F Lo: 21°C |
Tuesday... Sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 50%. Heat index values up to 106. |
| Wed Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Wednesday... Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 90s. South winds around 5 mph. Chance of rain 20%. Heat index values up to 105. |
| Thu Hi: 95°FHi: 35°C Lo: 70°F Lo: 21°C |
Thursday... Mostly clear. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 100. |
| Fri Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Friday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20%. |
| Sat Hi: 90°FHi: 32°C Lo: 65°F Lo: 18°C |
Saturday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20%. |
| Sun Hi: 85°FHi: 29°C |
Sunday... Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30%. |
Union Radar Loop
Use the map search tool if you want to place a location marker on the radar map...