Observed 5:20 PM CDT at KMVN

Nason, IL weather

Sunny and 73°23°, 12°7° warmer than a typical Oct 24, jacket by 9 PM.

Forecasts agree

Now 73°23°

Sunny

Wind: 3 mph5 km/h; From the east. Light through 5 AM
Dew point: 45°7°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Pressure: 30.35 inHg1028 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (73°23° then, 71°22° now)

Good hours for

Drops 13°7° tonight 6–9 PM (71°22° → 58°14°)
Below 60°16° tonight after 8 PM
Low 47°8° tomorrow at 6 AM
Above 60°16° tomorrow by 10 AM
Drops 12°7° tomorrow night 6–9 PM (73°23° → 61°16°)

TonightDown to 48°9° by 4 AM · Clear
Tomorrow morningUp to 68°20° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 78°26° by 4 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 5 AM · Mostly cloudy
Monday morningUp to 70°21° by 11 AM · Mostly cloudy
Monday afternoonUp to 78°26° by 2 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 5p	Partly sunny	72°22° (likely 70°21° to 73°23°)	72°22°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	39%	39%	1
Sat 6p	Clear	71°22° (likely 65°18° to 71°22°)	71°22°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	39%	10%	0
Sat 7p	Clear	65°18° (likely 62°17° to 65°18°)	65°18°	0%	3 mph5 km/h from ESE, gusts 6 mph10 km/h	52%	20%	0
Sat 8p	Clear	58°14° (likely 58°14° to 60°16°)	58°14°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	67%	14%	0
Sat 9p	Clear	55°13° (likely 55°13° to 58°14°)	55°13°	0%	2 mph3 km/h from ESE, gusts 6 mph9 km/h	74%	4%	0
Sat 10p	Mostly clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	1 mph2 km/h from ESE, gusts 6 mph9 km/h	77%	11%	0
Sat 11p	Clear	53°12° (likely 53°12° to 56°13°)	53°12°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	80%	38%	0
Sun 12a	Clear	52°11° (likely 51°11° to 55°13°)	52°11°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	83%	4%	0
Sun 1a	Clear	51°11° (likely 50°10° to 54°12°)	51°11°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	86%	2%	0
Sun 2a	Clear	50°10° (likely 49°9° to 53°12°)	50°10°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	86%	4%	0
Sun 3a	Clear	49°9° (likely 48°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	89%	9%	0
Sun 4a	Clear	48°9° (likely 48°9° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	12%	0
Sun 5a	Mostly clear	48°9° (likely 47°8° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	58%	0
Sun 6a	Mostly clear	47°8° (likely 47°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	52%	0
Sun 7a	Mostly sunny	47°8° (likely 46°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	66%	0
Sun 8a	Mostly sunny	49°9° (likely 47°8° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 3 mph6 km/h	96%	55%	0
Sun 9a	Mostly sunny	55°13° (likely 54°12° to 58°14°)	55°13°	0%	0 mph0 km/h, gusts 3 mph6 km/h	86%	61%	1
Sun 10a	Mostly sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 7 mph12 km/h	65%	58%	2
Sun 11a	Mostly sunny	68°20° (likely 66°19° to 69°21°)	68°20°	0%	0 mph0 km/h, gusts 7 mph11 km/h	53%	67%	3
Sun 12p	Partly sunny	72°22° (likely 69°21° to 74°23°)	72°22°	0%	0 mph0 km/h, gusts 6 mph10 km/h	46%	74%	4
Sun 1p	Mostly cloudy	75°24° (likely 72°22° to 77°25°)	75°24°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	40%	67%	4
Sun 2p	Mostly cloudy	76°24° (likely 74°23° to 78°26°)	76°24°	0%	1 mph2 km/h from SSE, gusts 6 mph10 km/h	37%	65%	4
Sun 3p	Cloudy	77°25° (likely 74°23° to 78°26°)	77°25°	0%	1 mph2 km/h from SSE, gusts 6 mph9 km/h	35%	80%	4
Sun 4p	Partly sunny	78°26° (likely 74°23° to 78°26°)	78°26°	0%	1 mph2 km/h from SSE, gusts 5 mph8 km/h	32%	75%	2
Sun 5p	Cloudy	76°24° (likely 72°22° to 77°25°)	76°24°	0%	0 mph0 km/h, gusts 5 mph8 km/h	39%	80%	1
Sun 6p	Cloudy	73°23° (likely 67°19° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 3 mph5 km/h	43%	80%	0
Sun 7p	Cloudy	67°19° (likely 64°18° to 68°20°)	67°19°	0%	0 mph0 km/h, gusts 4 mph6 km/h	54%	80%	0
Sun 8p	Cloudy	61°16° (likely 61°16° to 63°17°)	61°16°	0%	0 mph0 km/h, gusts 7 mph12 km/h	67%	79%	0
Sun 9p	Cloudy	58°14° (likely 58°14° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 9 mph15 km/h	77%	80%	0
Sun 10p	Cloudy	56°13° (likely 56°13° to 60°16°)	56°13°	0%	0 mph0 km/h, gusts 9 mph14 km/h	83%	80%	0
Sun 11p	Cloudy	55°13° (likely 55°13° to 59°15°)	55°13°	0%	0 mph0 km/h, gusts 8 mph12 km/h	86%	80%	0
Mon 12a	Cloudy	55°13° (likely 55°13° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 7 mph11 km/h	86%	81%	0
Mon 1a	Cloudy	54°12° (likely 54°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	86%	82%	0
Mon 2a	Cloudy	53°12° (likely 53°12° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	89%	82%	0
Mon 3a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 6 mph9 km/h	89%	83%	0
Mon 4a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 5 mph9 km/h	89%	80%	0
Mon 5a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 4 mph7 km/h	89%	83%	0
Mon 6a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	84%	0
Mon 7a	Cloudy	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	83%	0
Mon 8a	Cloudy	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	83%	0
Mon 9a	Cloudy	57°14° (likely 57°14° to 60°16°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	80%	82%	1
Mon 10a	Cloudy	65°18° (likely 64°18° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 9 mph14 km/h	63%	82%	2
Mon 11a	Cloudy	70°21° (likely 67°19° to 71°22°)	70°21°	0%	1 mph2 km/h from SW, gusts 10 mph16 km/h	51%	83%	3
Mon 12p	Cloudy	73°23° (likely 71°22° to 75°24°)	73°23°	0%	2 mph3 km/h from SW, gusts 9 mph14 km/h	44%	84%	3
Mon 1p	Cloudy	75°24° (likely 73°23° to 76°24°)	75°24°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	40%	90%	4
Mon 2p	Cloudy	78°26° (likely 74°23° to 78°26°)	78°26°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	35%	88%	4
Mon 3p	Partly sunny	78°26° (likely 74°23° to 78°26°)	78°26°	0%	3 mph5 km/h from SW, gusts 8 mph13 km/h	35%	76%	3
Mon 4p	Partly sunny	78°26° (likely 73°23° to 78°26°)	78°26°	0%	2 mph3 km/h from SW, gusts 7 mph12 km/h	35%	71%	2

Days ahead

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

Today, Oct 24. Cloudy. High 76°24°, low 47°8°. Typical 64°18° / 42°6°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Today: Mostly sunny. High near 76, with temperatures falling to around 72 in the afternoon. Southeast wind around 2 mph.
Tonight: Mostly clear, with a low around 47. East wind 0 to 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
74°23°–76°24°
Low, likely
40°4°–47°8°
Typical high / low
64°18° / 42°6°
Wind
6 mph10 km/h, gusts 14 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 78°26°, low 50°10°. Typical 64°18° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 78, with temperatures falling to around 76 in the afternoon. Southeast wind around 1 mph.
Night: Mostly cloudy, with a low around 50. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–78°26°
Low, likely
46°8°–50°10°
Typical high / low
64°18° / 41°5°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 78°26°, low 49°9°. Typical 63°17° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  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
  Partly cloudy, 54°12°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 78. West southwest wind 0 to 3 mph.
Night: Partly cloudy, with a low around 49. West northwest wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
74°23°–78°26°
Low, likely
49°9°–54°12°
Typical high / low
63°17° / 41°5°
Wind
7 mph11 km/h, gusts 14 mph22 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 77°25°, low 50°10°. Typical 63°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 77. South 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
71°22°–77°25°
Low, likely
50°10°–55°13°
Typical high / low
63°17° / 41°5°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 80°27°, low 52°11°. Typical 62°17° / 40°4°. 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, 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 80. South wind 1 to 9 mph.
Night: Mostly clear, with a low around 52. South wind around 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–80°27°
Low, likely
51°11°–54°12°
Typical high / low
62°17° / 40°4°
Wind
11 mph18 km/h, gusts 20 mph32 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 82°28°, low 52°11°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 79°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 82. South southwest wind 3 to 8 mph.
Night: Mostly clear, with a low around 52. South wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
77°25°–82°28°
Low, likely
52°11°–55°13°
Typical high / low
62°17° / 40°4°
Wind
13 mph21 km/h, gusts 25 mph40 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 81°27°, low 56°13°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 58°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 81. South wind 2 to 7 mph.
Night: Mostly cloudy, with a low around 56. South southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–81°27°
Low, likely
51°11°–56°13°
Typical high / low
61°16° / 40°4°
Wind
10 mph16 km/h, gusts 17 mph28 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 73°23°, low 60°16°. Typical 61°16° / 39°4°. Rain 0.07 in1.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 74°24°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 68°20°
  40% chance · 0.04 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 66°19°
  50% chance · 0.08 in2 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
67°19°–79°26°
Low, likely
56°13°–62°17°
Typical high / low
61°16° / 39°4°
Wind
15 mph24 km/h, gusts 22 mph35 km/h
UV peak
3
Sunday, Nov 1. Showers. High 75°24°, low 63°17°. Typical 60°16° / 39°4°. Rain 0.36 in9.1 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 67°19°
  50% chance · 0.03 in0.7 mm
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  40% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Showers, 71°21°
  30% chance · 0.21 in5.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 55°13°
  40% chance · 0.11 in2.9 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
72°22°–81°27°
Low, likely
62°17°–65°18°
Typical high / low
60°16° / 39°4°
Wind
19 mph31 km/h, gusts 41 mph66 km/h
UV peak
3
Monday, Nov 2. Rain. High 69°21°, low 53°12°. Typical 60°16° / 39°4°. Rain 0.27 in6.9 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 55°13°
  40% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 60°16°
  30% chance · 0.03 in0.6 mm
3. Evening
  6 PM–midnight
  Rain, 55°13°
  30% chance · 0.15 in3.9 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
60°16°–78°26°
Low, likely
39°4°–66°19°
Typical high / low
60°16° / 39°4°
Wind
24 mph38 km/h, gusts 36 mph57 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 47°.
Tomorrow
Dry, high 78°, low 50°.
Monday
Dry, high 78°, low 49°.
Rest of week
Highs 69–82°; chance of precipitation on Sunday.

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 Subimpoundment near Waltonville

2.2 mi

Level: 9.5 ft

Reading from Sat 4:30 PM · NWS gauge page

Casey Fork Subimpoundment near Bonnie

2.3 mi

Level: 10.7 ft

Reading from Sat 4:30 PM · NWS gauge page

Rayse Creek above Waltonville

6.7 mi

Level: 1.3 ft
Flow: under 1 cfs

Reading from Sat 4:30 PM · NWS gauge page

Casey Fork above Mount Vernon

9.2 mi

Level: 1.4 ft
Flow: 2 cfs

Reading from Sat 4:30 PM · NWS gauge page

For your home

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

Heating this week

About 84% less heating than a typical week.

This week 15Typical 93

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 2
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 45°F).

Open the windows?

Today, 6:00 PM–7:00 PM

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

Is this typical?

MT VERNON 3 NE · official normals 1991–2020 · records 1895–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 2°1° warmer than normal (daily mean temperature).

−9°−5°SunOct 18
—MonOct 19
±0°TueOct 20
+3°+2°WedOct 21
+5°+3°ThuOct 22
+7°+4°FriOct 23
+6°+3°SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 52 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 22 min less
Golden hour: 5:29–6:22 PM; Morning 6:57–7:50 AM
Blue hour: 6:22–6:32 PM; Morning 6:46–6:57 AM; first light 6:46 AM

Stars tonight? Fair

Mostly clear 6:32–11 PM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:28 AM · rises 5:03 PM
Full moon: Oct 25
New moon: Nov 9

Looking south from Nason. The highest point on the skyline is about 1,400 ft, 22 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Nason, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Big Muddy River Subimpoundment near Waltonville

Casey Fork Subimpoundment near Bonnie

Rayse Creek above Waltonville

Casey Fork above Mount Vernon

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