Union, MO Weather Forecast & Current Conditions

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Union, MO Weather Maps

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Union Weather Map
UTC Time: 9/19/2026, 11:04
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Union, MO Regional Weather

Expires:202609191200;;705836
ASUS43 KLSX 191057
RWRMO 

WEATHER SUMMARY FOR MISSOURI
NATIONAL WEATHER SERVICE SPRINGFIELD MO
600 AM CDT SAT SEP 19 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
       SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.
       CURRENT SKY AND/OR WEATHER CONDITIONS ARE NOT AVAILABLE FOR
       CHILLICOTHE AND FARMINGTON.


MOZ051-052-059>065-191200-
...EAST CENTRAL MISSOURI...
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ST LOUIS INTL  CLEAR     80  64  58 SW8       29.96S                  
                   
$$

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Union, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 65° 33°/ 18°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
70°21°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Rain Showers
75°24°
20%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Warren, MO

Today
Partly Cloudy
95°/ 70° 35°/ 21°
0%
Sunday
Thunderstorms
88°/ 65° 31°/ 18°
80%
Monday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°/ 55° 11°/ 13°
0%
Friday
Rain Showers
75°24°
20%

Day: Partly sunny. Hot with highs in the mid 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows around 70. Southwest winds around 5 mph.

Saint Charles, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Monroe, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
95°/ 65° 35°/ 18°
70%
Monday
Thunderstorms
80°/ 58° 27°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 55° 24°/ 13°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Saint Louis, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Gasconade, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 65° 33°/ 18°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
70°21°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Rain Showers
75°24°
20%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Washington, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 65° 33°/ 18°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
70°21°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Rain Showers
75°24°
20%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Crawford, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 65° 33°/ 18°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
70°21°
0%
Wednesday
Cloudy
75°24°
0%
Thu Night
Cloudy
75°24°
0%
Friday
Rain Showers
75°24°
20%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Montgomery, MO

Today
Partly Cloudy
95°/ 70° 35°/ 21°
0%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
80%
Monday
Thunderstorms
72°/ 55° 22°/ 13°
70%
Tue-Tue Night
Mostly Cloudy
68°20°
0%
Wednesday
Cloudy
72°22°
0%
Thursday
Cloudy
72°/ 55° 22°/ 13°
0%
Friday
Rain Showers
75°24°
20%

Day: Partly sunny. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows around 70. Southwest winds around 5 mph.

Saint Francois, MO

Today
Sunny
98°/ 70° 37°/ 21°
0%
Sunday
Sunny
95°/ 68° 35°/ 20°
50%
Monday
Thunderstorms
82°/ 58° 28°/ 14°
70%
Tuesday
Partly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°/ 55° 11°/ 13°
20%
Friday
Sunny
78°26°
0%

Day: Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy in the evening, then becoming mostly clear. Lows around 70. Southwest winds around 5 mph.

Osage, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
90°/ 65° 32°/ 18°
80%
Monday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Tuesday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°/ 58° 11°/ 14°
0%
Friday
Rain Showers
75°24°
20%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Monroe, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
95°/ 65° 35°/ 18°
70%
Monday
Thunderstorms
80°/ 58° 27°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 55° 24°/ 13°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Greene, IL

Today
Mostly Cloudy
95°/ 70° 35°/ 21°
0%
Sunday
Thunderstorms
88°/ 62° 31°/ 17°
70%
Monday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Tue Night
Mostly Cloudy
52°11°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°24°
0%
Friday
Cloudy
75°24°
0%

Day: Partly sunny this morning, then becoming mostly cloudy. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. Southwest winds around 5 mph.

Vichy, MO

Tonight
Clear
75°24°
0%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 65° 33°/ 18°
80%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tuesday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%
Wednesday
Cloudy
55°13°
0%
Thu Night
Cloudy
55°13°
0%
Friday
Rain Showers
75°24°
20%

Night: Mostly clear. Near steady temperature in the mid 70s. South winds 5 to 10 mph.

Northwye, MO

Tonight
Clear
75°24°
0%
Saturday
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Sunny
92°/ 65° 33°/ 18°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Cloudy
52°11°
0%
Thursday
Cloudy
52°/ 55° 11°/ 13°
20%
Friday
Partly Cloudy
75°24°
0%

Night: Mostly clear. Near steady temperature in the mid 70s. South winds around 5 mph.

Callaway, MO

Today
Partly Cloudy
95°/ 68° 35°/ 20°
20%
Sunday
Thunderstorms
85°/ 62° 29°/ 17°
90%
Monday
Thunderstorms
70°/ 55° 21°/ 13°
70%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Wed Night
Cloudy
52°11°
0%
Thu-Thu Night
Mostly Cloudy
72°22°
0%
Friday
Rain Showers
75°24°
20%

Day: Partly sunny. Highs in the mid 90s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Southwest winds around 5 mph. Chance of rain 20 percent.

Saint Clair, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Saint Louis City, MO

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Madison, IL

Today
Sunny
98°/ 72° 37°/ 22°
0%
Sunday
Thunderstorms
92°/ 68° 33°/ 20°
70%
Monday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Tue-Tue Night
Mostly Cloudy
72°22°
0%
Wednesday
Cloudy
75°24°
0%
Thursday
Cloudy
75°/ 58° 24°/ 14°
0%

Day: Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

Night: Partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Lake Spring, MO

Tonight
Clear
72°22°
0%
Saturday
Sunny
98°/ 70° 37°/ 21°
0%
Sunday
Sunny
95°/ 65° 35°/ 18°
70%
Monday
Thunderstorms
82°/ 58° 28°/ 14°
70%
Tuesday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Wed Night
Cloudy
52°11°
0%
Thursday
Sunny
75°/ 52° 24°/ 11°
20%
Friday
Partly Cloudy
78°26°
0%

Night: Clear. Near steady temperature in the lower 70s. South winds around 5 mph.

Names listed above may include county names.

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