Observed 9:05 PM CDT at KPWK

Arlington Heights, IL weather

Mostly clear and 55°13°, 10°6° warmer than a typical Oct 24.

Forecasts agree

Now 55°13°

Mostly clear

Wind: Calm; Up to 5 mph8 km/h through 9 AM
Dew point: 50°10°; Comfortable
UV tomorrow: 3Moderate; Moderate 12–4 PM · peak 3
Air quality: 84Moderate; Main pollutant: Ozone
Pressure: 30.39 inHg1029 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

2°1° warmer than this time yesterday (55°13° then, 57°14° now)

Good hours for

Low 50°10° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM
High 74°23° tomorrow at 3 PM

TonightDown to 51°11° by 5 AM · Partly cloudy
Tomorrow morningUp to 66°19° by 11 AM · Cloudy
Tomorrow afternoonUp to 74°23° by 3 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 5 AM · Mostly cloudy
Monday morningUp to 62°17° by 11 AM · Cloudy
Monday afternoonDown to 59°15° by 5 PM · Mostly cloudy
Monday nightDown to 52°11° by 8 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 9p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	69%	17%	0
Sat 10p	Clear	57°14° (likely 55°13° to 57°14°)	57°14°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	70%	10%	0
Sat 11p	Clear	56°13° (likely 54°12° to 56°13°)	56°13°	0%	5 mph8 km/h from S, gusts 10 mph17 km/h	69%	13%	0
Sun 12a	Partly cloudy	55°13° (likely 54°12° to 55°13°)	55°13°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	71%	21%	0
Sun 1a	Partly cloudy	54°12° (likely 53°12° to 54°12°)	54°12°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	71%	69%	0
Sun 2a	Partly cloudy	53°12° (likely 52°11° to 53°12°)	53°12°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	73%	55%	0
Sun 3a	Partly cloudy	52°11° (likely 52°11° to 52°11°)	53°12°	0%	0 mph0 km/h, gusts 9 mph15 km/h	75%	66%	0
Sun 4a	Cloudy	52°11° (likely 51°11° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 9 mph15 km/h	75%	85%	0
Sun 5a	Cloudy	51°11° (likely 51°11° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 10 mph16 km/h	76%	95%	0
Sun 6a	Cloudy	51°11° (likely 51°11° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 9 mph15 km/h	76%	97%	0
Sun 7a	Cloudy	50°10° (likely 50°10° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 10 mph15 km/h	76%	97%	0
Sun 8a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	5 mph8 km/h from SSW, gusts 9 mph15 km/h	76%	94%	0
Sun 9a	Cloudy	56°13° (likely 55°13° to 57°14°)	56°13°	0%	5 mph8 km/h from SSW, gusts 12 mph19 km/h	66%	91%	1
Sun 10a	Cloudy	61°16° (likely 59°15° to 61°16°)	61°16°	0%	5 mph8 km/h from SSW, gusts 13 mph21 km/h	57%	88%	1
Sun 11a	Cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	0%	5 mph8 km/h from SSW, gusts 14 mph22 km/h	49%	78%	2
Sun 12p	Cloudy	69°21° (likely 66°19° to 69°21°)	69°21°	0%	5 mph8 km/h from SSW, gusts 12 mph20 km/h	44%	76%	3
Sun 1p	Partly sunny	72°22° (likely 68°20° to 72°22°)	72°22°	0%	5 mph8 km/h from SSW, gusts 11 mph17 km/h	41%	76%	3
Sun 2p	Cloudy	73°23° (likely 70°21° to 73°23°)	73°23°	0%	5 mph8 km/h from SSW, gusts 10 mph16 km/h	40%	59%	3
Sun 3p	Partly sunny	74°23° (likely 70°21° to 74°23°)	74°23°	0%	5 mph8 km/h from SSW, gusts 10 mph16 km/h	39%	45%	3
Sun 4p	Cloudy	73°23° (likely 69°21° to 73°23°)	73°23°	0%	5 mph8 km/h from S, gusts 10 mph15 km/h	40%	79%	2
Sun 5p	Cloudy	71°22° (likely 68°20° to 71°22°)	71°22°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	44%	79%	1
Sun 6p	Cloudy	68°20° (likely 64°18° to 68°20°)	68°20°	0%	5 mph8 km/h from S, gusts 7 mph12 km/h	48%	80%	0
Sun 7p	Cloudy	64°18° (likely 62°17° to 64°18°)	65°18°	0%	5 mph8 km/h from SSW, gusts 6 mph10 km/h	54%	78%	0
Sun 8p	Cloudy	62°17° (likely 60°16° to 62°17°)	62°17°	0%	5 mph8 km/h from S, gusts 6 mph9 km/h	60%	80%	0
Sun 9p	Cloudy	60°16° (likely 59°15° to 60°16°)	60°16°	0%	5 mph8 km/h from S, gusts 6 mph9 km/h	64%	79%	0
Sun 10p	Partly cloudy	58°14° (likely 58°14° to 59°15°)	58°14°	0%	5 mph8 km/h from S, gusts 6 mph10 km/h	68%	70%	0
Sun 11p	Partly cloudy	57°14° (likely 57°14° to 57°14°)	57°14°	0%	5 mph8 km/h from SW, gusts 7 mph11 km/h	70%	75%	0
Mon 12a	Cloudy	56°13° (likely 56°13° to 57°14°)	56°13°	0%	5 mph8 km/h from W, gusts 8 mph12 km/h	72%	78%	0
Mon 1a	Partly cloudy	55°13° (likely 55°13° to 57°14°)	55°13°	0%	5 mph8 km/h from W, gusts 8 mph14 km/h	75%	68%	0
Mon 2a	Partly cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	5 mph8 km/h from WNW, gusts 9 mph15 km/h	79%	61%	0
Mon 3a	Partly cloudy	52°11° (likely 52°11° to 55°13°)	53°12°	0%	5 mph8 km/h from NNW, gusts 9 mph15 km/h	83%	58%	0
Mon 4a	Mostly cloudy	52°11° (likely 51°11° to 54°12°)	52°11°	0%	5 mph8 km/h from NNW, gusts 9 mph15 km/h	90%	63%	0
Mon 5a	Mostly cloudy	51°11° (likely 50°10° to 55°13°)	51°11°	0%	5 mph8 km/h from N, gusts 12 mph19 km/h	95%	65%	0
Mon 6a	Mostly cloudy	51°11° (likely 50°10° to 55°13°)	49°9°	0%	5 mph8 km/h from N, gusts 12 mph19 km/h	97%	86%	0
Mon 7a	Cloudy	51°11° (likely 51°11° to 55°13°)	49°9°	0%	5 mph8 km/h from NNE, gusts 13 mph21 km/h	99%	95%	0
Mon 8a	Cloudy	52°11° (likely 52°11° to 56°13°)	52°11°	0%	5 mph8 km/h from NNE, gusts 17 mph27 km/h	97%	96%	0
Mon 9a	Cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	0%	5 mph8 km/h from NNE, gusts 17 mph27 km/h	88%	94%	1
Mon 10a	Cloudy	59°15° (likely 59°15° to 61°16°)	59°15°	0%	10 mph16 km/h from NNE, gusts 17 mph28 km/h	78%	89%	1
Mon 11a	Cloudy	62°17° (likely 59°15° to 62°17°)	62°17°	0%	10 mph16 km/h from NE, gusts 17 mph28 km/h	68%	89%	2
Mon 12p	Cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	0%	10 mph16 km/h from NE, gusts 18 mph28 km/h	66%	89%	3
Mon 1p	Cloudy	64°18° (likely 60°16° to 64°18°)	64°18°	0%	10 mph16 km/h from NE, gusts 17 mph28 km/h	65%	84%	3
Mon 2p	Cloudy	63°17° (likely 59°15° to 63°17°)	63°17°	0%	10 mph16 km/h from NE, gusts 17 mph27 km/h	64%	84%	3
Mon 3p	Cloudy	62°17° (likely 59°15° to 62°17°)	62°17°	0%	10 mph16 km/h from NE, gusts 17 mph27 km/h	64%	84%	2
Mon 4p	Cloudy	61°16° (likely 58°14° to 61°16°)	61°16°	0%	10 mph16 km/h from NE, gusts 18 mph28 km/h	65%	78%	1
Mon 5p	Cloudy	59°15° (likely 56°13° to 59°15°)	59°15°	0%	10 mph16 km/h from NE, gusts 18 mph28 km/h	69%	85%	1
Mon 6p	Cloudy	56°13° (likely 54°12° to 57°14°)	56°13°	0%	10 mph16 km/h from NE, gusts 18 mph29 km/h	74%	84%	0
Mon 7p	Cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	10 mph16 km/h from NE, gusts 18 mph29 km/h	80%	81%	0
Mon 8p	Mostly cloudy	52°11° (likely 52°11° to 57°14°)	53°12°	0%	10 mph16 km/h from NE, gusts 16 mph25 km/h	86%	73%	0

Days ahead

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

Today, Oct 24. Cloudy. High 69°21°, low 50°10°. Typical 59°15° / 43°6°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
2. Overnight
  midnight–6 AM
  Partly cloudy, 51°11°
  Dry
Official NWS forecast
Tonight: Partly cloudy, with a low around 50. South wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–71°22°
Low, likely
47°8°–50°10°
Typical high / low
59°15° / 43°6°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 74°23°, low 51°11°. Typical 59°15° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 51°11°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 74, with temperatures falling to around 71 in the afternoon. South southwest wind 0 to 5 mph.
Night: Partly cloudy, with a low around 51. Southwest wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–74°23°
Low, likely
51°11°
Typical high / low
59°15° / 42°6°
Wind
8 mph12 km/h, gusts 17 mph27 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 64°18°, low 48°9°. Typical 58°14° / 42°6°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°11°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 64. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Night: Mostly cloudy, with a low around 48. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 64°18°).
High, likely
60°16°–64°18°
Low, likely
48°9°–53°12°
Typical high / low
58°14° / 42°6°
Wind
12 mph20 km/h, gusts 23 mph37 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 68°20°, low 54°12°. Typical 58°14° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 68.
Night: Mostly cloudy, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
50°10°–54°12°
Typical high / low
58°14° / 42°6°
Wind
7 mph12 km/h, gusts 17 mph28 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 74°23°, low 56°13°. Typical 57°14° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 60°16°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 74.
Night: Partly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–74°23°
Low, likely
54°12°–57°14°
Typical high / low
57°14° / 41°5°
Wind
11 mph17 km/h, gusts 27 mph44 km/h
UV peak
4
Thursday, Oct 29. Showers. High 73°23°, low 56°13°. Typical 57°14° / 41°5°. Rain 0.09 in2.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 58°15°
  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 73.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 56.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–73°23°
Low, likely
55°13°–61°16°
Typical high / low
57°14° / 41°5°
Wind
11 mph18 km/h, gusts 34 mph55 km/h
UV peak
2
Friday, Oct 30. Mostly cloudy. High 73°23°, low 56°13°. Typical 56°13° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 60°15°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 73.
Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 56.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–74°23°
Low, likely
54°12°–60°16°
Typical high / low
56°13° / 40°4°
Wind
13 mph20 km/h, gusts 28 mph45 km/h
UV peak
3
Saturday, Oct 31. Showers. High 71°22°, low 59°15°. Typical 56°13° / 40°4°. Rain 0.1 in2.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  30% chance
3. Evening
  6 PM–midnight
  Showers, 67°19°
  40% chance · 0.06 in1.4 mm
4. Overnight
  midnight–6 AM
  Showers, 60°16°
  50% chance · 0.31 in7.8 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Mostly cloudy, with a high near 71.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–73°23°
Low, likely
53°12°–64°18°
Typical high / low
56°13° / 40°4°
Wind
13 mph22 km/h, gusts 28 mph46 km/h
UV peak
1
Sunday, Nov 1. Showers. High 66°19°, low 59°15°. Typical 55°13° / 40°4°. Rain 0.42 in11 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  40% chance · 0.06 in1.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 67°19°
  40% chance · 0.05 in1.2 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  30% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Drizzle, 53°12°
  30% chance · 0.02 in0.5 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
55°13° / 40°4°
Wind
16 mph26 km/h, gusts 41 mph66 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 63°17°, low 53°12°. Typical 55°13° / 39°4°. Rain 0.45 in11 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  30% chance · 0.11 in2.9 mm
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  30% chance · 0.27 in6.9 mm
3. Evening
  6 PM–midnight
  Clear, 56°13°
  30% chance · 0.09 in2.3 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
56°13°–68°20°
Low, likely
39°4°–60°16°
Typical high / low
55°13° / 39°4°
Wind
16 mph26 km/h, gusts 35 mph56 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 69°, low 50°.
Tomorrow
Dry, high 74°, low 51°, warming up.
Monday
Dry, high 64°, low 48°, cooling off.
Rest of week
Highs 63–74°; chance of precipitation on Sunday.

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

Salt Creek (IL) at Rolling Meadows

3.1 mi

Below flood stage

Level: 2.2 ft
Flow: 3 cfs

Reading from Sat 8:45 PM · NWS gauge page

McDonald Creek near Mount Prospect

3.5 mi

Below flood stage

Level: 0.8 ft
Flow: 1 cfs

Reading from Sat 8:45 PM · NWS gauge page

Buffalo Creek (IL) at Wheeling

4.0 mi

Below flood stage

Level: 1.4 ft
Flow: under 1 cfs

Reading from Sat 8:15 PM · NWS gauge page

Weller Creek at Des Plaines

4.6 mi

Below flood stage

Level: 0.7 ft
Flow: 1 cfs

Reading from Sat 9 PM · NWS gauge page

For your home

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

Heating this week

About 86% less heating than a typical week.

This week 15Typical 108

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 50°F).

Open the windows?

Sun, 10:00 AM–9:00 PM

Good stretch to open the windows.

Is this typical?

Chicago Ohare International Airport · official normals 1991–2020 · records 1872–2026

Oct 24, today vs a typical year

Today’s expected high is 10°6° warmer than typical.

Last 7 days vs normal

On average 6°4° warmer than normal (daily mean temperature).

+3°+2°MonOct 19
+4°+2°TueOct 20
+6°+3°WedOct 21
+10°+6°ThuOct 22
+9°+5°FriOct 23
—SatOct 24
—SunOct 25

Arlington Heights weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 41 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 35 min less
Golden hour: 5:17–6:14 PM; Morning 6:57–7:54 AM
Blue hour: 6:14–6:24 PM; Morning 6:46–6:57 AM; first light 6:46 AM

Stars tonight? Fair

Mostly clear 9:42 PM–1 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:27 AM · rises 4:54 PM
Full moon: Oct 25
New moon: Nov 9

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

Arlington Heights, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Salt Creek (IL) at Rolling Meadows

McDonald Creek near Mount Prospect

Buffalo Creek (IL) at Wheeling

Weller Creek at Des Plaines

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? Fair

Moon