Observed 6:25 PM CDT at KSTJ

Union Star, MO weather

Sunny and 72°22°, 16°9° warmer than a typical Oct 24.

Forecasts agree

Now 72°22°

Sunny

Wind: 7 mph11 km/h; From the southeast. 35–7 mph11 km/h through 6 AM
Dew point: 48°9°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 84Moderate; Main pollutant: Ozone
Pressure: 30.22 inHg1023 hPa; Rising slowly · +0.02 inHg+0.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (72°22° then, 73°23° now)

Good hours for

Low 55°13° tomorrow at 6 AM
Above 70°21° tomorrow by noon
High 78°26° tomorrow at 3 PM
Below 70°21° tomorrow night after 8 PM

TonightDown to 56°13° by 5 AM · Mostly cloudy
Tomorrow morningUp to 68°20° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 78°26° by 3 PM · Mostly cloudy
Tomorrow nightDown to 55°13° by 5 AM · Mostly cloudy
Monday morningUp to 67°19° by 11 AM · Mostly cloudy
Monday afternoonUp to 75°24° by 3 PM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 6p	Cloudy	73°23° (likely 71°22° to 75°24°)	73°23°	0%	7 mph11 km/h from S, gusts 11 mph17 km/h	44%	73%	1
Sat 7p	Cloudy	70°21° (likely 68°20° to 70°21°)	70°21°	0%	6 mph10 km/h from SSE, gusts 11 mph18 km/h	49%	81%	0
Sat 8p	Cloudy	66°19° (likely 66°19° to 67°19°)	66°19°	0%	6 mph10 km/h from SSE, gusts 11 mph17 km/h	56%	82%	0
Sat 9p	Cloudy	64°18° (likely 64°18° to 66°19°)	64°18°	0%	6 mph10 km/h from SSE, gusts 12 mph19 km/h	60%	82%	0
Sat 10p	Cloudy	63°17° (likely 63°17° to 65°18°)	63°17°	0%	5 mph8 km/h from SSE, gusts 12 mph19 km/h	62%	80%	0
Sat 11p	Cloudy	62°17° (likely 61°16° to 64°18°)	62°17°	0%	6 mph10 km/h from SSE, gusts 12 mph19 km/h	65%	76%	0
Sun 12a	Cloudy	61°16° (likely 60°16° to 63°17°)	61°16°	0%	6 mph10 km/h from SSE, gusts 11 mph17 km/h	67%	71%	0
Sun 1a	Partly cloudy	60°16° (likely 59°15° to 62°17°)	60°16°	0%	6 mph10 km/h from SSE, gusts 9 mph15 km/h	69%	66%	0
Sun 2a	Mostly cloudy	59°15° (likely 58°14° to 61°16°)	59°15°	0%	5 mph8 km/h from S, gusts 8 mph12 km/h	69%	51%	0
Sun 3a	Clear	58°14° (likely 57°14° to 59°15°)	58°14°	0%	5 mph8 km/h from S, gusts 5 mph8 km/h	72%	38%	0
Sun 4a	Partly cloudy	57°14° (likely 56°13° to 58°14°)	57°14°	0%	5 mph8 km/h from S, gusts 6 mph9 km/h	75%	48%	0
Sun 5a	Cloudy	56°13° (likely 55°13° to 57°14°)	56°13°	0%	3 mph5 km/h from S, gusts 6 mph10 km/h	77%	80%	0
Sun 6a	Cloudy	55°13° (likely 55°13° to 57°14°)	55°13°	0%	3 mph5 km/h from S, gusts 6 mph9 km/h	77%	79%	0
Sun 7a	Cloudy	55°13° (likely 54°12° to 57°14°)	55°13°	0%	5 mph8 km/h from S, gusts 5 mph8 km/h	80%	78%	0
Sun 8a	Cloudy	56°13° (likely 53°12° to 57°14°)	56°13°	0%	3 mph5 km/h from S, gusts 5 mph8 km/h	77%	79%	0
Sun 9a	Cloudy	59°15° (likely 57°14° to 60°16°)	59°15°	0%	3 mph5 km/h from S, gusts 5 mph7 km/h	75%	77%	0
Sun 10a	Cloudy	64°18° (likely 62°17° to 64°18°)	64°18°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	67%	79%	1
Sun 11a	Partly sunny	68°20° (likely 67°19° to 69°21°)	68°20°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	59%	77%	3
Sun 12p	Cloudy	72°22° (likely 71°22° to 72°22°)	72°22°	0%	6 mph10 km/h from S, gusts 9 mph15 km/h	51%	69%	4
Sun 1p	Partly sunny	76°24° (likely 74°23° to 76°24°)	76°24°	0%	6 mph10 km/h from S, gusts 8 mph14 km/h	45%	70%	4
Sun 2p	Cloudy	77°25° (likely 75°24° to 77°25°)	77°25°	0%	7 mph11 km/h from S, gusts 8 mph14 km/h	42%	73%	4
Sun 3p	Cloudy	78°26° (likely 76°24° to 78°26°)	78°26°	0%	7 mph11 km/h from S, gusts 8 mph13 km/h	39%	77%	3
Sun 4p	Cloudy	78°26° (likely 76°24° to 78°26°)	78°26°	0%	8 mph13 km/h from S, gusts 9 mph15 km/h	39%	80%	2
Sun 5p	Cloudy	76°24° (likely 75°24° to 77°25°)	76°24°	0%	7 mph11 km/h from SSE, gusts 9 mph15 km/h	43%	78%	2
Sun 6p	Cloudy	73°23° (likely 71°22° to 74°23°)	73°23°	0%	6 mph10 km/h from SSE, gusts 7 mph12 km/h	48%	74%	1
Sun 7p	Cloudy	70°21° (likely 67°19° to 70°21°)	70°21°	0%	6 mph10 km/h from SSE, gusts 8 mph13 km/h	53%	72%	0
Sun 8p	Cloudy	66°19° (likely 64°18° to 66°19°)	66°19°	0%	6 mph10 km/h from SSE, gusts 8 mph13 km/h	61%	76%	0
Sun 9p	Cloudy	63°17° (likely 63°17° to 64°18°)	63°17°	0%	5 mph8 km/h from SSE, gusts 8 mph13 km/h	67%	80%	0
Sun 10p	Cloudy	62°17° (likely 61°16° to 63°17°)	62°17°	0%	6 mph10 km/h from SSE, gusts 9 mph14 km/h	70%	82%	0
Sun 11p	Cloudy	61°16° (likely 60°16° to 62°17°)	61°16°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	70%	81%	0
Mon 12a	Cloudy	60°16° (likely 59°15° to 62°17°)	60°16°	0%	5 mph8 km/h from SSE, gusts 8 mph12 km/h	72%	80%	0
Mon 1a	Cloudy	59°15° (likely 57°14° to 61°16°)	59°15°	0%	5 mph8 km/h from SSE, gusts 7 mph11 km/h	75%	81%	0
Mon 2a	Cloudy	58°14° (likely 57°14° to 60°16°)	58°14°	0%	3 mph5 km/h from SSE, gusts 6 mph10 km/h	75%	82%	0
Mon 3a	Cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	3 mph5 km/h from SSE, gusts 6 mph9 km/h	77%	81%	0
Mon 4a	Cloudy	56°13° (likely 56°13° to 58°14°)	56°13°	0%	5 mph8 km/h from SSE, gusts 7 mph11 km/h	80%	84%	0
Mon 5a	Cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	0%	5 mph8 km/h from SSE, gusts 7 mph10 km/h	83%	81%	0
Mon 6a	Cloudy	54°12° (likely 54°12° to 58°14°)	54°12°	0%	5 mph8 km/h from SSE, gusts 6 mph10 km/h	83%	81%	0
Mon 7a	Cloudy	54°12° (likely 53°12° to 57°14°)	54°12°	0%	5 mph8 km/h from S, gusts 6 mph10 km/h	83%	81%	0
Mon 8a	Cloudy	56°13° (likely 52°11° to 58°14°)	56°13°	0%	5 mph8 km/h from S, gusts 7 mph11 km/h	80%	76%	0
Mon 9a	Sunny	59°15° (likely 55°13° to 60°16°)	59°15°	0%	5 mph8 km/h from S, gusts 8 mph12 km/h	75%	31%	0
Mon 10a	Mostly cloudy	63°17° (likely 61°16° to 63°17°)	63°17°	0%	6 mph10 km/h from S, gusts 7 mph12 km/h	70%	50%	1
Mon 11a	Cloudy	67°19° (likely 66°19° to 68°20°)	67°19°	0%	7 mph11 km/h from S, gusts 8 mph14 km/h	61%	62%	2
Mon 12p	Cloudy	70°21° (likely 70°21° to 72°22°)	70°21°	0%	7 mph11 km/h from S, gusts 9 mph15 km/h	53%	64%	3
Mon 1p	Cloudy	72°22° (likely 72°22° to 75°24°)	72°22°	0%	8 mph13 km/h from S, gusts 10 mph16 km/h	48%	60%	4
Mon 2p	Partly sunny	74°23° (likely 73°23° to 76°24°)	74°23°	0%	9 mph14 km/h from S, gusts 11 mph18 km/h	44%	63%	4
Mon 3p	Partly sunny	75°24° (likely 73°23° to 77°25°)	75°24°	0%	9 mph14 km/h from S, gusts 12 mph19 km/h	41%	69%	3
Mon 4p	Cloudy	75°24° (likely 73°23° to 78°26°)	75°24°	0%	9 mph14 km/h from S, gusts 13 mph21 km/h	41%	71%	2
Mon 5p	Cloudy	73°23° (likely 71°22° to 77°25°)	73°23°	0%	9 mph14 km/h from S, gusts 14 mph23 km/h	44%	78%	1

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 78°26°, low 54°12°. Typical 62°17° / 39°4°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Official NWS forecast
Tonight: Mostly cloudy, with a low around 54. South wind 3 to 7 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
77°25°–79°26°
Low, likely
54°12°–56°13°
Typical high / low
62°17° / 39°4°
Wind
12 mph19 km/h, gusts 22 mph35 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 79°26°, low 54°12°. Typical 62°17° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 79. South wind 3 to 8 mph.
Night: Mostly cloudy, with a low around 54. South southeast wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–79°26°
Low, likely
53°12°–56°13°
Typical high / low
62°17° / 38°3°
Wind
8 mph12 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 76°24°, low 56°13°. Typical 61°16° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°16°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 76. South wind 5 to 9 mph.
Night: Mostly cloudy, with a low around 56. South wind 5 to 8 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–77°25°
Low, likely
52°11°–57°14°
Typical high / low
61°16° / 38°3°
Wind
11 mph18 km/h, gusts 24 mph38 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 71°22°, low 57°14°. Typical 61°16° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 61°16°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers between 7am and 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 20%.
Night: A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
57°14°–61°16°
Typical high / low
61°16° / 37°3°
Wind
14 mph23 km/h, gusts 32 mph51 km/h
UV peak
3
Wednesday, Oct 28. Mostly sunny. High 77°25°, low 58°14°. Typical 60°16° / 37°3°. Rain 0.03 in0.8 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  20% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 69°21°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 64°18°
  30% chance · 0.01 in0.4 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 77.
Night: A chance of rain showers after 1am. Mostly clear, with a low around 58. Chance of precipitation is 40%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–77°25°
Low, likely
57°14°–63°17°
Typical high / low
60°16° / 37°3°
Wind
18 mph28 km/h, gusts 38 mph61 km/h
UV peak
4
Thursday, Oct 29. Showers. High 79°26°, low 60°16°. Typical 60°16° / 37°3°. Rain 0.12 in3 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 63°17°
  30% chance · 0.1 in2.5 mm
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 69°21°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 65°18°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
Night: A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
60°16°–64°18°
Typical high / low
60°16° / 37°3°
Wind
15 mph24 km/h, gusts 34 mph55 km/h
UV peak
4
Friday, Oct 30. Showers. High 77°25°, low 58°14°. Typical 59°15° / 36°2°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 66°19°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 70°21°
  20% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Cloudy, 64°18°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Night: A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
74°23°–81°27°
Low, likely
58°14°–67°19°
Typical high / low
59°15° / 36°2°
Wind
21 mph33 km/h, gusts 34 mph55 km/h
UV peak
3
Saturday, Oct 31. Showers. High 72°22°, low 60°16°. Typical 59°15° / 36°2°. Rain 0.24 in6.1 mm, 70% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  50% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  50% chance · 0.05 in1.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  50% chance · 0.13 in3.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 62°17°
  40% chance · 0.08 in2 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely. Mostly cloudy, with a high near 72.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–74°23°
Low, likely
58°14°–62°17°
Typical high / low
59°15° / 36°2°
Wind
18 mph29 km/h, gusts 34 mph55 km/h
UV peak
2
Sunday, Nov 1. Cloudy. High 68°20°, low 56°13°. Typical 58°14° / 35°2°. Rain 0.31 in7.9 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 63°17°
  40% chance · 0.03 in0.7 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°19°
  30% chance · 0.11 in2.8 mm
3. Evening
  6 PM–midnight
  Drizzle, 60°15°
  30% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Mostly clear, 53°12°
  30% chance · 0.07 in1.7 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–73°23°
Low, likely
43°6°–62°17°
Typical high / low
58°14° / 35°2°
Wind
17 mph27 km/h, gusts 33 mph53 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 65°18°, low 52°11°. Typical 58°14° / 35°2°. Rain 0.23 in5.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  40% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  30% chance
3. Evening
  6 PM–midnight
  Clear, 58°14°
  30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
53°12°–76°24°
Low, likely
36°2°–61°16°
Typical high / low
58°14° / 35°2°
Wind
25 mph40 km/h, gusts 50 mph81 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 78°, low 54°.
Tomorrow
Dry, high 79°, low 54°.
Monday
Dry, high 76°, low 56°, cooling off.
Rest of week
Highs 65–79°; chance of precipitation on Saturday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (EAX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Missouri River at St. Joseph

21 mi

Below flood stage

Level: 7.0 ft
Flow: 39,400 cfs

Forecast peak 7.1 ft Sat 7 PM

Reading from Sat 4:35 PM · NWS gauge page

102 River at Rosendale

13 mi

Below flood stage

Level: 2.8 ft

Reading from Sat 5:30 PM · NWS gauge page

Platte River near Agency

21 mi

Below flood stage

Level: 7.1 ft
Flow: 439 cfs

Reading from Sat 5:30 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 93% less heating than a typical week.

This week 7Typical 112

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 48°F).

Open the windows?

Today, 7:00 PM–1:00 AM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Cosby 2w · official normals 1991–2020 · records 2000–2026

Oct 24, today vs a typical year

Today’s expected high is 16°9° warmer than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Union Star weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 27 min less
Golden hour: 5:48–6:42 PM; Morning 7:21–8:16 AM
Blue hour: 6:42–6:53 PM; Morning 7:10–7:21 AM; first light 7:10 AM

Stars tonight? Poor

Clouds most of the night (about 70% cover).

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:53 AM · rises 5:23 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Union Star. The highest point on the skyline is about 2,900 ft, 21 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Union Star, MO weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Missouri River at St. Joseph

102 River at Rosendale

Platte River near Agency

For your home

Heating this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Poor

Moon