Observed 7:50 AM CDT at KMDW

Posen, IL weather

Partly cloudy and 54°12°, 11°6° warmer than a typical Oct 24.

Mostly agree

Now 54°12°

Partly sunny

Wind: 3 mph5 km/h; From the south. 35–10 mph16 km/h through 8 PM
Dew point: 45°7°; Comfortable
UV index: 0Low; Moderate 12–2 PM · peak 3
Air quality: 69Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.4 inHg1029 hPa; Rising slowly · +0.04 inHg+1.3 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° warmer than this time yesterday (49°9° then, 52°11° now)

Good hours for

Above 60°16° today by 11 AM
High 71°22° today at 3 PM

This morningUp to 63°17° by 11 AM · Mostly cloudy
This afternoonUp to 71°22° by 3 PM · Mostly cloudy
TonightDown to 51°11° by 5 AM · Partly cloudy
Tomorrow morningUp to 65°18° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 73°23° by 3 PM · Mostly cloudy
Tomorrow nightDown to 53°12° by 5 AM · 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 8a	Partly sunny	51°11° (likely 48°9° to 51°11°)	51°11°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	81%	47%	0
Sat 9a	Partly sunny	55°13° (likely 52°11° to 55°13°)	55°13°	0%	5 mph8 km/h from SSE, gusts 11 mph18 km/h	71%	65%	0
Sat 10a	Partly sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	62%	62%	1
Sat 11a	Cloudy	63°17° (likely 60°16° to 64°18°)	63°17°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	57%	81%	2
Sat 12p	Cloudy	66°19° (likely 64°18° to 67°19°)	66°19°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	51%	81%	3
Sat 1p	Cloudy	69°21° (likely 66°19° to 70°21°)	69°21°	0%	10 mph16 km/h from S, gusts 11 mph17 km/h	45%	80%	3
Sat 2p	Cloudy	70°21° (likely 68°20° to 71°22°)	70°21°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	43%	73%	2
Sat 3p	Cloudy	71°22° (likely 68°20° to 71°22°)	71°22°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	41%	80%	2
Sat 4p	Cloudy	71°22° (likely 68°20° to 71°22°)	71°22°	0%	5 mph8 km/h from S, gusts 10 mph15 km/h	40%	80%	1
Sat 5p	Partly sunny	69°21° (likely 66°19° to 70°21°)	69°21°	0%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	43%	63%	0
Sat 6p	Cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	0%	5 mph8 km/h from SSE, gusts 7 mph11 km/h	49%	78%	0
Sat 7p	Cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	5%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	55%	76%	0
Sat 8p	Mostly cloudy	61°16° (likely 58°14° to 61°16°)	61°16°	5%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	60%	47%	0
Sat 9p	Partly cloudy	60°16° (likely 57°14° to 60°16°)	60°16°	5%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	64%	28%	0
Sat 10p	Partly cloudy	59°15° (likely 55°13° to 59°15°)	59°15°	0%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	65%	40%	0
Sat 11p	Partly cloudy	57°14° (likely 54°12° to 57°14°)	57°14°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	69%	20%	0
Sun 12a	Mostly clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	5 mph8 km/h from S, gusts 10 mph17 km/h	71%	47%	0
Sun 1a	Mostly clear	55°13° (likely 51°11° to 55°13°)	55°13°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	72%	30%	0
Sun 2a	Mostly clear	54°12° (likely 50°10° to 54°12°)	54°12°	5%	5 mph8 km/h from S, gusts 9 mph15 km/h	73%	39%	0
Sun 3a	Cloudy	53°12° (likely 49°9° to 53°12°)	53°12°	5%	5 mph8 km/h from S, gusts 9 mph15 km/h	74%	72%	0
Sun 4a	Partly cloudy	52°11° (likely 49°9° to 52°11°)	52°11°	5%	5 mph8 km/h from S, gusts 9 mph15 km/h	76%	75%	0
Sun 5a	Partly cloudy	51°11° (likely 48°9° to 51°11°)	51°11°	5%	5 mph8 km/h from S, gusts 10 mph15 km/h	77%	73%	0
Sun 6a	Partly cloudy	51°11° (likely 48°9° to 51°11°)	51°11°	5%	5 mph8 km/h from S, gusts 10 mph15 km/h	78%	72%	0
Sun 7a	Partly sunny	50°10° (likely 47°8° to 50°10°)	49°9°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	81%	80%	0
Sun 8a	Partly sunny	52°11° (likely 48°9° to 52°11°)	52°11°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	78%	85%	0
Sun 9a	Cloudy	56°13° (likely 53°12° to 56°13°)	56°13°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	68%	89%	1
Sun 10a	Cloudy	61°16° (likely 58°14° to 62°17°)	61°16°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	60%	89%	2
Sun 11a	Cloudy	65°18° (likely 62°17° to 67°19°)	65°18°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	53%	89%	3
Sun 12p	Cloudy	68°20° (likely 66°19° to 70°21°)	68°20°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	48%	70%	3
Sun 1p	Cloudy	71°22° (likely 69°21° to 72°22°)	71°22°	0%	5 mph8 km/h from SSW, gusts 8 mph13 km/h	42%	66%	3
Sun 2p	Partly sunny	72°22° (likely 70°21° to 74°23°)	72°22°	0%	5 mph8 km/h from S, gusts 8 mph12 km/h	40%	70%	3
Sun 3p	Cloudy	73°23° (likely 70°21° to 74°23°)	73°23°	0%	5 mph8 km/h from S, gusts 7 mph12 km/h	39%	73%	2
Sun 4p	Cloudy	73°23° (likely 70°21° to 74°23°)	73°23°	0%	5 mph8 km/h from S, gusts 7 mph11 km/h	38%	79%	2
Sun 5p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	0 mph0 km/h, gusts 7 mph11 km/h	42%	78%	1
Sun 6p	Cloudy	68°20° (likely 63°17° to 68°20°)	68°20°	0%	0 mph0 km/h, gusts 5 mph8 km/h	47%	75%	0
Sun 7p	Cloudy	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	54%	81%	0
Sun 8p	Cloudy	62°17° (likely 59°15° to 62°17°)	63°17°	0%	0 mph0 km/h, gusts 6 mph10 km/h	60%	79%	0
Sun 9p	Cloudy	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	66%	78%	0
Sun 10p	Cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 6 mph10 km/h	66%	77%	0
Sun 11p	Cloudy	58°14° (likely 55°13° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	67%	73%	0
Mon 12a	Cloudy	57°14° (likely 54°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	69%	83%	0
Mon 1a	Cloudy	56°13° (likely 54°12° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 7 mph11 km/h	71%	81%	0
Mon 2a	Mostly cloudy	55°13° (likely 53°12° to 61°16°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	72%	71%	0
Mon 3a	Cloudy	55°13° (likely 52°11° to 60°16°)	55°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	73%	75%	0
Mon 4a	Cloudy	54°12° (likely 52°11° to 60°16°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	77%	77%	0
Mon 5a	Mostly cloudy	53°12° (likely 51°11° to 60°16°)	53°12°	0%	0 mph0 km/h, gusts 3 mph4 km/h	81%	66%	0
Mon 6a	Mostly cloudy	52°11° (likely 50°10° to 59°15°)	52°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	85%	60%	0
Mon 7a	Mostly cloudy	53°12° (likely 49°9° to 59°15°)	53°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	63%	0

Days ahead

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

Today, Oct 24. Cloudy. High 71°22°, low 50°10°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. South southeast wind 5 to 10 mph.
Tonight: Partly cloudy, with a low around 50. South southeast wind around 5 mph, with gusts as high as 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–71°22°
Low, likely
47°8°–50°10°
Typical high / low
60°16° / 43°6°
Wind
7 mph12 km/h, gusts 18 mph29 km/h
UV peak
4
Tomorrow, Oct 25. Partly sunny. High 73°23°, low 52°11°. Typical 59°15° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 73. South wind 0 to 5 mph.
Night: Partly cloudy, with a low around 52. South southwest wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–74°23°
Low, likely
47°8°–52°11°
Typical high / low
59°15° / 43°6°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 68°20°, low 50°10°. Typical 59°15° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 68. North wind 0 to 10 mph, with gusts as high as 20 mph.
Night: Mostly cloudy, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–68°20°
Low, likely
49°9°–55°13°
Typical high / low
59°15° / 43°6°
Wind
10 mph16 km/h, gusts 19 mph30 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 68°20°, low 53°12°. Typical 58°14° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 68.
Night: Mostly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
49°9°–55°13°
Typical high / low
58°14° / 42°6°
Wind
7 mph12 km/h, gusts 24 mph39 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 73°23°, low 55°13°. Typical 58°14° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 60°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 73.
Night: Partly cloudy, with a low around 55.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
53°12°–58°14°
Typical high / low
58°14° / 42°6°
Wind
11 mph18 km/h, gusts 24 mph39 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 71°22°, low 50°10°. Typical 57°14° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 60°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 71.
Night: Partly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–76°24°
Low, likely
50°10°–61°16°
Typical high / low
57°14° / 42°6°
Wind
10 mph16 km/h, gusts 27 mph43 km/h
UV peak
3
Friday, Oct 30. Showers. High 68°20°, low 51°11°. Typical 57°14° / 41°5°. Rain, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 7am. Mostly sunny, with a high near 68.
Night: A slight chance of rain showers. Mostly cloudy, with a low around 51.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–75°24°
Low, likely
49°9°–58°14°
Typical high / low
57°14° / 41°5°
Wind
11 mph18 km/h, gusts 21 mph34 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 70°21°, low 57°14°. Typical 56°13° / 41°5°. Rain 0.06 in1.5 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 66°19°
  40% chance
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  50% chance · 0.04 in1.1 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
68°20°–76°24°
Low, likely
55°13°–60°16°
Typical high / low
56°13° / 41°5°
Wind
12 mph20 km/h, gusts 22 mph35 km/h
UV peak
3
Sunday, Nov 1. Showers. High 68°20°, low 60°16°. Typical 56°13° / 40°4°. Rain 0.55 in14 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 62°16°
  50% chance · 0.07 in1.9 mm
2. Afternoon
  noon–6 PM
  Drizzle, 67°20°
  50% chance · 0.2 in5.1 mm
3. Evening
  6 PM–midnight
  Showers, 63°17°
  50% chance · 0.23 in5.8 mm
4. Overnight
  midnight–6 AM
  Showers, 60°15°
  40% chance · 0.05 in1.2 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–70°21°
Low, likely
57°14°–62°17°
Typical high / low
56°13° / 40°4°
Wind
21 mph34 km/h, gusts 42 mph67 km/h
UV peak
2
Monday, Nov 2. Showers. High 64°18°, low 56°13°. Typical 55°13° / 40°4°. Rain 0.59 in15 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 60°15°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Showers, 64°18°
  40% chance · 0.45 in11 mm
3. Evening
  6 PM–midnight
  Drizzle, 59°15°
  40% chance · 0.25 in6.3 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
52°11°–61°16°
Typical high / low
55°13° / 40°4°
Wind
18 mph29 km/h, gusts 38 mph61 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 71°, low 50°.
Tomorrow
Dry, high 73°, low 52°.
Monday
Dry, high 68°, low 50°, cooling off.
Rest of week
Highs 64–73°; chance of precipitation on Sunday, Monday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LOT) (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

Calumet Union Drainage Canal at Markham

2.5 mi

Below flood stage

Level: 2.3 ft

Reading from Sat 6:45 AM · NWS gauge page

Midlothian Creek at Oak Forest

2.5 mi

Below flood stage

Level: 1.5 ft
Flow: 1 cfs

Reading from Sat 6:30 AM · NWS gauge page

Natalie Creek at Midlothian

2.5 mi

Below flood stage

Level: 5.1 ft
Flow: under 1 cfs

Reading from Sat 5:45 AM · NWS gauge page

Tinley Creek near Palos Park

4.3 mi

Below flood stage

Level: 2.5 ft
Flow: 3 cfs

Reading from Sat 6:45 AM · NWS gauge page

For your home

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

Heating this week

About 89% less heating than a typical week.

This week 11Typical 103

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 11:00 AM–9:00 PM

Good stretch to open the windows.

Is this typical?

CHICAGO MIDWAY AP · official normals 1991–2020 · records 1928–2026

Oct 24, today vs a typical year

Today’s expected high is 11°6° warmer than typical.

Last 7 days vs normal

On average 5°3° warmer than normal (daily mean temperature).

−1°SunOct 18
+3°+1°MonOct 19
+4°+2°TueOct 20
+6°+3°WedOct 21
+9°+5°ThuOct 22
+8°+4°FriOct 23
—SatOct 24

Posen weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 43 min; Losing 2 min 39 s a day; shortest Dec 21, 1 h 33 min less
Golden hour: 5:17–6:13 PM; Morning 6:55–7:51 AM
Blue hour: 6:13–6:24 PM; Morning 6:44–6:55 AM; first light 6:44 AM

Stars tonight? Poor

Clouds most of the night (about 54% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:26 AM · rises 4:53 PM
Full moon: Oct 25
New moon: Nov 9

Looking northeast from Posen. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Posen, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Calumet Union Drainage Canal at Markham

Midlothian Creek at Oak Forest

Natalie Creek at Midlothian

Tinley Creek near Palos Park

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