Observed 11:05 AM CDT at KMDH

Harrison, IL weather

Sunny and 64°18°, 10°6° warmer than a typical Oct 24.

Mostly agree

Now 64°18°

Sunny

Wind: Calm; Light through 11 PM
Dew point: 48°9°; Comfortable
UV index: 4Moderate; Moderate until 4 PM · peak 5
Air quality: 43Good; Main pollutant: Ozone
Pressure: 30.38 inHg1029 hPa; Falling slowly · −0.03 inHg−0.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° cooler than this time yesterday (67°19° then, 64°18° now)

Good hours for

High 76°24° today at 4 PM
Below 60°16° tonight after 9 PM
Low 47°8° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM

This afternoonUp to 76°24° by 4 PM · Partly cloudy
TonightDown to 49°9° by 4 AM · Partly cloudy
Tomorrow morningUp to 68°20° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 78°26° by 4 PM · Mostly cloudy
Tomorrow nightDown to 50°10° by 5 AM · Cloudy
Monday morningUp to 63°17° by 10 AM · 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 11a	Sunny	65°18° (likely 63°17° to 66°19°)	65°18°	0%	2 mph3 km/h from ESE, gusts 7 mph11 km/h	54%	18%	3
Sat 12p	Partly sunny	70°21° (likely 67°19° to 71°22°)	70°21°	0%	2 mph3 km/h from E, gusts 7 mph10 km/h	44%	25%	4
Sat 1p	Mostly sunny	73°23° (likely 70°21° to 74°23°)	73°23°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	37%	44%	5
Sat 2p	Partly sunny	74°23° (likely 72°22° to 76°24°)	74°23°	0%	2 mph3 km/h from ESE, gusts 5 mph9 km/h	34%	30%	4
Sat 3p	Partly sunny	75°24° (likely 73°23° to 76°24°)	75°24°	0%	2 mph3 km/h from ESE, gusts 6 mph9 km/h	33%	53%	3
Sat 4p	Sunny	76°24° (likely 72°22° to 76°24°)	76°24°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	31%	7%	2
Sat 5p	Sunny	74°23° (likely 70°21° to 74°23°)	74°23°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	35%	27%	1
Sat 6p	Cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	2 mph3 km/h from E, gusts 5 mph8 km/h	39%	60%	0
Sat 7p	Mostly clear	66°19° (likely 60°16° to 66°19°)	66°19°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	50%	48%	0
Sat 8p	Mostly clear	60°16° (likely 57°14° to 60°16°)	60°16°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	67%	46%	0
Sat 9p	Clear	57°14° (likely 55°13° to 58°14°)	57°14°	0%	1 mph2 km/h from ESE, gusts 6 mph10 km/h	77%	40%	0
Sat 10p	Clear	55°13° (likely 53°12° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	40%	0
Sat 11p	Partly cloudy	54°12° (likely 51°11° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	31%	0
Sun 12a	Clear	53°12° (likely 49°9° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	89%	9%	0
Sun 1a	Clear	52°11° (likely 48°9° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 3 mph6 km/h	93%	2%	0
Sun 2a	Clear	51°11° (likely 47°8° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	6%	0
Sun 3a	Mostly clear	51°11° (likely 46°8° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 2 mph3 km/h	89%	41%	0
Sun 4a	Mostly clear	49°9° (likely 46°8° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	27%	0
Sun 5a	Mostly clear	49°9° (likely 46°8° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 1 mph2 km/h	93%	52%	0
Sun 6a	Mostly clear	49°9° (likely 45°7° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	93%	54%	0
Sun 7a	Partly sunny	47°8° (likely 45°7° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	56%	0
Sun 8a	Partly sunny	49°9° (likely 46°8° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	56%	0
Sun 9a	Partly sunny	53°12° (likely 53°12° to 58°14°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	89%	49%	1
Sun 10a	Partly sunny	62°17° (likely 62°17° to 66°19°)	62°17°	0%	1 mph2 km/h from SSW, gusts 13 mph21 km/h	67%	51%	2
Sun 11a	Partly sunny	68°20° (likely 68°20° to 71°22°)	68°20°	0%	1 mph2 km/h from SSW, gusts 14 mph22 km/h	55%	71%	3
Sun 12p	Partly sunny	72°22° (likely 72°22° to 74°23°)	72°22°	0%	2 mph3 km/h from SSW, gusts 13 mph21 km/h	46%	76%	4
Sun 1p	Cloudy	75°24° (likely 74°23° to 77°25°)	75°24°	0%	2 mph3 km/h from SSW, gusts 11 mph17 km/h	40%	80%	4
Sun 2p	Cloudy	76°24° (likely 75°24° to 78°26°)	76°24°	0%	2 mph3 km/h from SSW, gusts 9 mph14 km/h	36%	87%	4
Sun 3p	Partly sunny	77°25° (likely 75°24° to 78°26°)	77°25°	0%	2 mph3 km/h from SSW, gusts 8 mph12 km/h	35%	74%	4
Sun 4p	Cloudy	78°26° (likely 75°24° to 78°26°)	78°26°	0%	2 mph3 km/h from S, gusts 7 mph12 km/h	34%	80%	3
Sun 5p	Cloudy	76°24° (likely 72°22° to 77°25°)	76°24°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	39%	84%	1
Sun 6p	Cloudy	73°23° (likely 67°19° to 73°23°)	73°23°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	43%	85%	0
Sun 7p	Cloudy	68°20° (likely 63°17° to 68°20°)	68°20°	0%	1 mph2 km/h from SSE, gusts 7 mph11 km/h	53%	87%	0
Sun 8p	Cloudy	62°17° (likely 61°16° to 64°18°)	62°17°	0%	0 mph0 km/h, gusts 6 mph10 km/h	70%	87%	0
Sun 9p	Cloudy	59°15° (likely 59°15° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 8 mph12 km/h	78%	88%	0
Sun 10p	Cloudy	58°14° (likely 57°14° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 7 mph12 km/h	80%	89%	0
Sun 11p	Cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	83%	89%	0
Mon 12a	Cloudy	56°13° (likely 55°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	86%	89%	0
Mon 1a	Cloudy	55°13° (likely 54°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	90%	88%	0
Mon 2a	Cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	90%	89%	0
Mon 3a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	86%	0
Mon 4a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	90%	0
Mon 5a	Cloudy	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	86%	0
Mon 6a	Cloudy	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	94%	0
Mon 7a	Cloudy	50°10° (likely 49°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	95%	0
Mon 8a	Cloudy	53°12° (likely 50°10° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	89%	90%	0
Mon 9a	Cloudy	58°14° (likely 57°14° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	80%	86%	1
Mon 10a	Cloudy	63°17° (likely 63°17° to 66°19°)	63°17°	0%	0 mph0 km/h, gusts 7 mph12 km/h	70%	82%	2

Days ahead

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

Today, Oct 24. Partly sunny. High 76°24°, low 47°8°. Typical 66°19° / 43°6°. Dry. Mostly agree.
1. Afternoon
  noon–6 PM
  Partly sunny, 76°24°
  Dry
2. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
3. Overnight
  midnight–6 AM
  Mostly clear, 49°9°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 76, with temperatures falling to around 74 in the afternoon. East southeast wind around 2 mph.
Tonight: Mostly clear. Low around 47, with temperatures rising to around 49 overnight. East wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–76°24°
Low, likely
43°6°–47°8°
Typical high / low
66°19° / 43°6°
Wind
7 mph11 km/h
UV peak
5
Tomorrow, Oct 25. Cloudy. High 78°26°, low 49°9°. Typical 65°18° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 78, with temperatures falling to around 76 in the afternoon. South southwest wind around 2 mph.
Night: Mostly cloudy, with a low around 49. South southeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–78°26°
Low, likely
44°7°–50°10°
Typical high / low
65°18° / 43°6°
Wind
9 mph15 km/h, gusts 16 mph26 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 77°25°, low 49°9°. Typical 65°18° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 77. South southwest wind around 2 mph.
Night: Partly cloudy, with a low around 49. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–78°26°
Low, likely
49°9°–53°12°
Typical high / low
65°18° / 43°6°
Wind
7 mph12 km/h
UV peak
4
Tuesday, Oct 27. Mostly cloudy. High 75°24°, low 50°10°. Typical 64°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 75. South southeast wind 0 to 3 mph.
Night: Mostly cloudy, with a low around 50. East southeast wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–75°24°
Low, likely
47°8°–55°13°
Typical high / low
64°18° / 42°6°
Wind
8 mph12 km/h, gusts 14 mph23 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 78°26°, low 51°11°. Typical 64°18° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 78. South southwest wind 0 to 8 mph.
Night: Mostly clear, with a low around 51. South wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–78°26°
Low, likely
48°9°–54°12°
Typical high / low
64°18° / 42°6°
Wind
9 mph15 km/h, gusts 19 mph30 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 78°26°, low 50°10°. Typical 63°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 53°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 78. South southwest wind 3 to 7 mph.
Night: Partly cloudy, with a low around 50. South southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–80°27°
Low, likely
48°9°–55°13°
Typical high / low
63°17° / 42°6°
Wind
10 mph17 km/h, gusts 23 mph37 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 76°24°, low 52°11°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 76. South wind 1 to 6 mph.
Night: Mostly cloudy, with a low around 52. South southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–81°27°
Low, likely
48°9°–56°13°
Typical high / low
63°17° / 41°5°
Wind
7 mph11 km/h, gusts 17 mph28 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 75°24°, low 62°17°. Typical 62°17° / 41°5°. Rain 0.11 in2.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 62°17°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 69°21°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 66°19°
  40% chance · 0.1 in2.6 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
70°21°–79°26°
Low, likely
60°16°–64°18°
Typical high / low
62°17° / 41°5°
Wind
10 mph17 km/h, gusts 20 mph31 km/h
UV peak
2
Sunday, Nov 1. Showers. High 70°21°, low 63°17°. Typical 62°17° / 40°4°. Rain 0.69 in18 mm, 50% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 67°19°
  40% chance · 0.15 in3.7 mm
2. Afternoon
  noon–6 PM
  Rain, 66°19°
  40% chance · 0.21 in5.3 mm
3. Evening
  6 PM–midnight
  Rain, 66°19°
  40% chance · 0.23 in5.9 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  40% chance · 0.22 in5.6 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 agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–72°22°
Low, likely
59°15°–66°19°
Typical high / low
62°17° / 40°4°
Wind
21 mph34 km/h, gusts 41 mph65 km/h
UV peak
1
Monday, Nov 2. Showers. High 67°19°, low 57°14°. Typical 61°16° / 40°4°. Rain 0.3 in7.6 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  40% chance · 0.18 in4.5 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  40% chance · 0.18 in4.6 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  30% 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
60°16°–76°24°
Low, likely
48°9°–67°19°
Typical high / low
61°16° / 40°4°
Wind
18 mph28 km/h, gusts 33 mph53 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 47°.
Tomorrow
Dry, high 78°, low 49°.
Monday
Dry, high 77°, low 49°.
Rest of week
Highs 67–78°; chance of precipitation on Sunday, Monday.

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

Big Muddy River at Murphysboro

2.7 mi

Below flood stage

Level: 3.2 ft
Flow: 112 cfs

Reading from Sat 10:30 AM · NWS gauge page

Crab Orchard Creek at Crab Orchard Lake near Marion 12W

12 mi

Level: 405 ft

Reading from Sat 10:15 AM · NWS gauge page

Mississippi River above Grand Tower

14 mi

Below flood stage

Level: 16.3 ft

Reading from Sat 10:30 AM · NWS gauge page

Little Grassy Creek at Little Grassy Lake near Marion 13WSW

15 mi

Level: 447 ft

Reading from Sat 10:15 AM · NWS gauge page

For your home

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

Heating this week

About 83% less heating than a typical week.

This week 14Typical 82

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 1
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 48°F).

Open the windows?

Today, 12:00 PM–8:00 PM

Good stretch to open the windows.

Is this typical?

Du Quoin 4 SE · official normals 1991–2020 · records 1895–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

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

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

Sun & moon

Sun

Daylight: 10 h 53 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 20 min less
Golden hour: 5:31–6:24 PM; Morning 6:58–7:50 AM
Blue hour: 6:24–6:34 PM; Morning 6:47–6:58 AM; first light 6:47 AM

Stars tonight? Fair

Mostly clear 12–3 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:30 AM · rises 5:04 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Harrison. The highest point on the skyline is about 1,900 ft, 5 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.