Observed 12:40 PM CDT at KCMI

Allerton, IL weather

Sunny and 72°22°, 12°7° warmer than a typical Oct 24, jacket by 9 PM.

Forecasts agree

Now 72°22°

Sunny

Wind: 6 mph9 km/h; From the southeast. Up to 6 mph10 km/h through 12 AM
Dew point: 46°8°; Comfortable
UV index: 4Moderate; Moderate until 3 PM
Pressure: 30.39 inHg1029 hPa; Falling · −0.06 inHg−2.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 73°23° today at 3 PM
Below 60°16° tonight after 8 PM
Low 45°7° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM

This afternoonUp to 73°23° by 3 PM · Mostly cloudy
TonightDown to 46°8° by 5 AM · Partly cloudy
Tomorrow morningUp to 66°19° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 75°24° by 4 PM · Mostly cloudy
Tomorrow nightDown to 49°9° by 5 AM · Partly cloudy
Monday morningUp to 68°20° by 11 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 12p	Partly sunny	68°20° (likely 66°19° to 68°20°)	68°20°	0%	6 mph10 km/h from SE, gusts 9 mph14 km/h	47%	50%	4
Sat 1p	Cloudy	71°22° (likely 69°21° to 71°22°)	71°22°	0%	6 mph10 km/h from SE, gusts 8 mph13 km/h	42%	69%	4
Sat 2p	Cloudy	72°22° (likely 70°21° to 72°22°)	72°22°	0%	6 mph10 km/h from SE, gusts 8 mph13 km/h	40%	79%	3
Sat 3p	Cloudy	73°23° (likely 70°21° to 73°23°)	73°23°	0%	6 mph10 km/h from SE, gusts 8 mph13 km/h	37%	79%	2
Sat 4p	Cloudy	73°23° (likely 69°21° to 73°23°)	73°23°	0%	5 mph8 km/h from SE, gusts 8 mph13 km/h	37%	76%	1
Sat 5p	Cloudy	71°22° (likely 66°19° to 71°22°)	71°22°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	39%	72%	0
Sat 6p	Partly cloudy	66°19° (likely 61°16° to 66°19°)	66°19°	0%	3 mph5 km/h from ESE, gusts 8 mph12 km/h	48%	70%	0
Sat 7p	Mostly clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from ESE, gusts 7 mph12 km/h	58%	47%	0
Sat 8p	Partly cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	72%	51%	0
Sat 9p	Mostly clear	54°12° (likely 54°12° to 56°13°)	54°12°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	80%	44%	0
Sat 10p	Partly cloudy	53°12° (likely 53°12° to 55°13°)	53°12°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	80%	42%	0
Sat 11p	Clear	52°11° (likely 51°11° to 54°12°)	52°11°	0%	2 mph3 km/h from SE, gusts 9 mph15 km/h	83%	41%	0
Sun 12a	Clear	51°11° (likely 50°10° to 52°11°)	51°11°	0%	2 mph3 km/h from SE, gusts 10 mph16 km/h	83%	4%	0
Sun 1a	Clear	50°10° (likely 49°9° to 52°11°)	50°10°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	86%	0%	0
Sun 2a	Clear	49°9° (likely 48°9° to 50°10°)	49°9°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	86%	0%	0
Sun 3a	Clear	48°9° (likely 47°8° to 49°9°)	48°9°	0%	2 mph3 km/h from SE, gusts 9 mph15 km/h	89%	10%	0
Sun 4a	Clear	47°8° (likely 46°8° to 48°9°)	47°8°	0%	2 mph3 km/h from SE, gusts 9 mph15 km/h	94%	38%	0
Sun 5a	Mostly clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	97%	57%	0
Sun 6a	Mostly clear	46°8° (likely 45°7° to 47°8°)	46°8°	0%	2 mph3 km/h from SE, gusts 8 mph12 km/h	93%	26%	0
Sun 7a	Mostly sunny	45°7° (likely 44°7° to 47°8°)	45°7°	0%	2 mph3 km/h from SSE, gusts 8 mph13 km/h	95%	56%	0
Sun 8a	Mostly sunny	47°8° (likely 45°7° to 49°9°)	47°8°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	95%	70%	0
Sun 9a	Mostly sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	2 mph3 km/h from SSE, gusts 8 mph13 km/h	92%	66%	1
Sun 10a	Mostly sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	2 mph3 km/h from SSE, gusts 8 mph13 km/h	70%	59%	2
Sun 11a	Mostly sunny	66°19° (likely 64°18° to 66°19°)	66°19°	0%	2 mph3 km/h from S, gusts 7 mph11 km/h	58%	55%	3
Sun 12p	Cloudy	70°21° (likely 67°19° to 71°22°)	70°21°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	49%	70%	4
Sun 1p	Cloudy	72°22° (likely 70°21° to 73°23°)	72°22°	0%	2 mph3 km/h from SSE, gusts 6 mph10 km/h	43%	78%	4
Sun 2p	Mostly sunny	73°23° (likely 71°22° to 74°23°)	73°23°	0%	2 mph3 km/h from SSE, gusts 6 mph10 km/h	41%	69%	4
Sun 3p	Mostly sunny	74°23° (likely 72°22° to 75°24°)	74°23°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	38%	66%	3
Sun 4p	Partly sunny	75°24° (likely 71°22° to 75°24°)	75°24°	0%	2 mph3 km/h from SSE, gusts 6 mph9 km/h	37%	70%	2
Sun 5p	Cloudy	73°23° (likely 68°20° to 73°23°)	73°23°	0%	1 mph2 km/h from SSE, gusts 6 mph9 km/h	40%	78%	1
Sun 6p	Partly cloudy	70°21° (likely 63°17° to 70°21°)	70°21°	0%	0 mph0 km/h, gusts 4 mph6 km/h	46%	63%	0
Sun 7p	Mostly clear	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	55%	44%	0
Sun 8p	Partly cloudy	59°15° (likely 59°15° to 61°16°)	59°15°	0%	0 mph0 km/h, gusts 7 mph11 km/h	67%	47%	0
Sun 9p	Mostly clear	56°13° (likely 56°13° to 59°15°)	56°13°	0%	1 mph2 km/h from SSE, gusts 8 mph14 km/h	74%	49%	0
Sun 10p	Partly cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	0%	1 mph2 km/h from SSE, gusts 9 mph14 km/h	74%	57%	0
Sun 11p	Partly cloudy	54°12° (likely 53°12° to 57°14°)	54°12°	0%	1 mph2 km/h from SSE, gusts 9 mph14 km/h	77%	58%	0
Mon 12a	Partly cloudy	53°12° (likely 52°11° to 56°13°)	53°12°	0%	1 mph2 km/h from SSE, gusts 8 mph13 km/h	80%	68%	0
Mon 1a	Cloudy	52°11° (likely 51°11° to 56°13°)	52°11°	0%	1 mph2 km/h from SSE, gusts 8 mph13 km/h	80%	70%	0
Mon 2a	Partly cloudy	52°11° (likely 51°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 8 mph13 km/h	80%	55%	0
Mon 3a	Mostly cloudy	51°11° (likely 50°10° to 54°12°)	51°11°	0%	1 mph2 km/h from SSE, gusts 8 mph13 km/h	83%	70%	0
Mon 4a	Partly cloudy	50°10° (likely 50°10° to 53°12°)	50°10°	0%	1 mph2 km/h from SSE, gusts 7 mph11 km/h	87%	70%	0
Mon 5a	Mostly clear	49°9° (likely 49°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	88%	61%	0
Mon 6a	Mostly clear	49°9° (likely 48°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	88%	68%	0
Mon 7a	Partly sunny	49°9° (likely 48°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	88%	66%	0
Mon 8a	Sunny	51°11° (likely 49°9° to 57°14°)	51°11°	0%	0 mph0 km/h, gusts 3 mph4 km/h	91%	55%	0
Mon 9a	Mostly sunny	56°13° (likely 54°12° to 61°16°)	56°13°	0%	0 mph0 km/h, gusts 5 mph7 km/h	81%	82%	1
Mon 10a	Partly sunny	63°17° (likely 61°16° to 65°18°)	63°17°	0%	0 mph0 km/h, gusts 5 mph9 km/h	67%	86%	2
Mon 11a	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	0 mph0 km/h, gusts 5 mph8 km/h	58%	85%	2

Days ahead

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

Today, Oct 24. Cloudy. High 73°23°, low 45°7°. Typical 61°16° / 40°4°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
2. Evening
  6 PM–midnight
  Mostly clear, 57°14°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Official NWS forecast
Today: Partly sunny, with a high near 73. Southeast wind around 6 mph.
Tonight: Mostly clear, with a low around 45. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–73°23°
Low, likely
44°7°–46°8°
Typical high / low
61°16° / 40°4°
Wind
9 mph14 km/h, gusts 14 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 75°24°, low 49°9°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Mostly cloudy, 49°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 75. South southeast wind around 2 mph.
Night: Partly cloudy, with a low around 49. Southeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–75°24°
Low, likely
44°7°–49°9°
Typical high / low
61°16° / 40°4°
Wind
8 mph12 km/h, gusts 14 mph23 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 76°24°, low 48°9°. Typical 60°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  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, with a high near 76. Wind around 0 mph.
Night: Partly cloudy, with a low around 48. Southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–76°24°
Low, likely
48°9°–51°11°
Typical high / low
60°16° / 39°4°
Wind
7 mph11 km/h, gusts 12 mph19 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 73°23°, low 50°10°. Typical 60°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  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 73. South southeast wind 1 to 5 mph.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–73°23°
Low, likely
48°9°–53°12°
Typical high / low
60°16° / 39°4°
Wind
10 mph16 km/h, gusts 22 mph35 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 77°25°, low 52°11°. Typical 59°15° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 77.
Night: Mostly clear, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–77°25°
Low, likely
50°10°–53°12°
Typical high / low
59°15° / 38°3°
Wind
12 mph20 km/h, gusts 20 mph32 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 75°24°, low 48°9°. Typical 59°15° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 75.
Night: Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
48°9°–57°14°
Typical high / low
59°15° / 38°3°
Wind
14 mph23 km/h, gusts 23 mph37 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 74°23°, low 49°9°. Typical 58°14° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 74.
Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–79°26°
Low, likely
49°9°–57°14°
Typical high / low
58°14° / 38°3°
Wind
13 mph21 km/h, gusts 22 mph35 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 73°23°, low 59°15°. Typical 58°14° / 37°3°. Rain 0.08 in2 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 67°19°
  30% chance
4. Overnight
  midnight–6 AM
  Drizzle, 63°17°
  50% chance · 0.17 in4.4 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
70°21°–75°24°
Low, likely
54°12°–63°17°
Typical high / low
58°14° / 37°3°
Wind
16 mph26 km/h, gusts 24 mph39 km/h
UV peak
2
Sunday, Nov 1. Showers. High 71°22°, low 61°16°. Typical 57°14° / 37°3°. Rain 0.66 in17 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 65°18°
  50% chance · 0.15 in3.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 72°22°
  40% chance · 0.08 in1.9 mm
3. Evening
  6 PM–midnight
  Showers, 67°19°
  40% chance · 0.3 in7.6 mm
4. Overnight
  midnight–6 AM
  Drizzle, 54°12°
  40% chance · 0.09 in2.2 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–77°25°
Low, likely
59°15°–63°17°
Typical high / low
57°14° / 37°3°
Wind
25 mph40 km/h, gusts 39 mph63 km/h
UV peak
3
Monday, Nov 2. Rain. High 64°18°, low 49°9°. Typical 57°14° / 37°3°. Rain 0.45 in11 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 51°11°
  40% chance · 0.07 in1.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 52°11°
  40% chance · 0.2 in5 mm
3. Evening
  6 PM–midnight
  Rain, 50°10°
  40% chance · 0.23 in5.9 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
61°16°–69°21°
Low, likely
37°3°–65°18°
Typical high / low
57°14° / 37°3°
Wind
21 mph33 km/h, gusts 40 mph64 km/h

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 45°.
Tomorrow
Dry, high 75°, low 49°.
Monday
Dry, high 76°, low 48°.
Rest of week
Highs 64–77°; chance of precipitation on Sunday, Monday.

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

Embarras River (IL) near Camargo

16 mi

Below flood stage

Level: 3.3 ft
Flow: 23 cfs

Reading from Sat 11:15 AM · NWS gauge page

Salt Fork (IL) near St. Joseph

17 mi

Level: 3.2 ft
Flow: 17 cfs

Reading from Sat 11:45 AM · NWS gauge page

Spoon River (E-IL) near St. Joseph

18 mi

Level: 4.1 ft

Reading from Sat 11:45 AM · NWS gauge page

Middle Fork Vermilion River above Oakwood

18 mi

Below flood stage

Level: 0.8 ft
Flow: 37 cfs

Reading from Sat 11:45 AM · NWS gauge page

For your home

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

Heating this week

About 85% less heating than a typical week.

This week 17Typical 110

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 5
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 46°F).

Open the windows?

Today, 1:00 PM–7:00 PM

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

Is this typical?

Sidell 4n · official normals 1991–2020 · records 2000–2026

Oct 24, today vs a typical year

Today’s expected high is 12°7° warmer than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

−5°−3°SunOct 18
±0°MonOct 19
+4°+2°TueOct 20
+5°+3°WedOct 21
+8°+4°ThuOct 22
+10°+5°FriOct 23
+9°+5°SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 48 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 27 min less
Golden hour: 5:21–6:16 PM; Morning 6:54–7:49 AM
Blue hour: 6:16–6:26 PM; Morning 6:44–6:54 AM; first light 6:44 AM

Stars tonight? Fair

Mostly clear 12–4 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:25 AM · rises 4:56 PM
Full moon: Oct 25
New moon: Nov 9

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

Allerton, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Embarras River (IL) near Camargo

Salt Fork (IL) near St. Joseph

Spoon River (E-IL) near St. Joseph

Middle Fork Vermilion River above Oakwood

For your home

Heating this week

Heat-pump hours, next 7 days

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