Observed 5:55 PM CDT at K1H2

St. Elmo, IL weather

Sunny and 66°19°, jacket by 9 PM.

Forecasts agree

Now 66°19°

Sunny

Wind: 3 mph5 km/h; From the east. Light through 6 AM
Dew point: 42°5°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Pressure: 30.37 inHg1028 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 (64°18° then, 66°19° now)

Good hours for

Below 60°16° tonight after 8 PM
Low 47°8° tonight at 5 AM
Above 60°16° tomorrow by 10 AM
High 75°24° tomorrow at 3 PM

TonightDown to 47°8° by 5 AM · Partly cloudy
Tomorrow morningUp to 67°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 75°24° by 3 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 5 AM · Mostly cloudy
Monday morningUp to 69°21° by 11 AM · Mostly cloudy
Monday afternoonUp to 76°24° by 3 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 6p	Partly cloudy	68°20° (likely 63°17° to 68°20°)	68°20°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	44%	34%	0
Sat 7p	Mostly clear	61°16° (likely 60°16° to 64°18°)	61°16°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	58%	52%	0
Sat 8p	Mostly clear	58°14° (likely 57°14° to 61°16°)	58°14°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	64%	21%	0
Sat 9p	Clear	55°13° (likely 55°13° to 59°15°)	55°13°	0%	2 mph3 km/h from E, gusts 8 mph13 km/h	72%	3%	0
Sat 10p	Clear	54°12° (likely 53°12° to 57°14°)	54°12°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	74%	0%	0
Sat 11p	Clear	53°12° (likely 52°11° to 56°13°)	53°12°	0%	2 mph3 km/h from SE, gusts 8 mph14 km/h	77%	0%	0
Sun 12a	Clear	52°11° (likely 51°11° to 55°13°)	52°11°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	80%	2%	0
Sun 1a	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	2 mph3 km/h from SE, gusts 7 mph12 km/h	86%	12%	0
Sun 2a	Mostly clear	50°10° (likely 49°9° to 53°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	86%	44%	0
Sun 3a	Mostly clear	49°9° (likely 48°9° to 52°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	86%	39%	0
Sun 4a	Partly cloudy	48°9° (likely 47°8° to 51°11°)	48°9°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	89%	80%	0
Sun 5a	Partly cloudy	47°8° (likely 47°8° to 51°11°)	47°8°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	93%	66%	0
Sun 6a	Partly cloudy	47°8° (likely 46°8° to 49°9°)	47°8°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	93%	73%	0
Sun 7a	Partly sunny	47°8° (likely 45°7° to 49°9°)	47°8°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	93%	71%	0
Sun 8a	Partly sunny	48°9° (likely 46°8° to 50°10°)	48°9°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	93%	63%	0
Sun 9a	Partly sunny	55°13° (likely 53°12° to 56°13°)	55°13°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	77%	63%	1
Sun 10a	Cloudy	62°17° (likely 59°15° to 63°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	62%	60%	2
Sun 11a	Partly sunny	67°19° (likely 64°18° to 69°21°)	67°19°	0%	3 mph5 km/h from S, gusts 6 mph9 km/h	50%	69%	3
Sun 12p	Partly sunny	70°21° (likely 68°20° to 73°23°)	70°21°	0%	3 mph5 km/h from S, gusts 6 mph9 km/h	46%	52%	4
Sun 1p	Partly sunny	73°23° (likely 71°22° to 75°24°)	73°23°	0%	3 mph5 km/h from S, gusts 5 mph8 km/h	40%	38%	4
Sun 2p	Mostly cloudy	74°23° (likely 72°22° to 77°25°)	74°23°	0%	2 mph3 km/h from SE, gusts 5 mph7 km/h	37%	65%	4
Sun 3p	Mostly cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	34%	69%	3
Sun 4p	Cloudy	75°24° (likely 72°22° to 77°25°)	75°24°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	33%	77%	2
Sun 5p	Cloudy	74°23° (likely 70°21° to 76°24°)	74°23°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	37%	77%	1
Sun 6p	Cloudy	70°21° (likely 65°18° to 71°22°)	70°21°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	42%	71%	0
Sun 7p	Cloudy	64°18° (likely 62°17° to 68°20°)	64°18°	0%	2 mph3 km/h from SE, gusts 2 mph4 km/h	54%	80%	0
Sun 8p	Cloudy	60°16° (likely 60°16° to 64°18°)	60°16°	0%	1 mph2 km/h from SE, gusts 5 mph7 km/h	62%	76%	0
Sun 9p	Cloudy	58°14° (likely 58°14° to 62°17°)	58°14°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	69%	80%	0
Sun 10p	Cloudy	57°14° (likely 57°14° to 60°16°)	57°14°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	72%	80%	0
Sun 11p	Cloudy	56°13° (likely 56°13° to 59°15°)	56°13°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	74%	78%	0
Mon 12a	Cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	0%	1 mph2 km/h from S, gusts 10 mph16 km/h	77%	80%	0
Mon 1a	Cloudy	54°12° (likely 54°12° to 57°14°)	54°12°	0%	1 mph2 km/h from S, gusts 9 mph14 km/h	80%	81%	0
Mon 2a	Cloudy	53°12° (likely 53°12° to 56°13°)	53°12°	0%	1 mph2 km/h from S, gusts 8 mph13 km/h	83%	91%	0
Mon 3a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	1 mph2 km/h from S, gusts 8 mph14 km/h	83%	90%	0
Mon 4a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	1 mph2 km/h from S, gusts 8 mph13 km/h	83%	86%	0
Mon 5a	Cloudy	51°11° (likely 51°11° to 53°12°)	51°11°	0%	1 mph2 km/h from SW, gusts 8 mph13 km/h	86%	68%	0
Mon 6a	Cloudy	51°11° (likely 51°11° to 52°11°)	51°11°	0%	1 mph2 km/h from SW, gusts 7 mph12 km/h	86%	64%	0
Mon 7a	Cloudy	50°10° (likely 50°10° to 52°11°)	50°10°	0%	1 mph2 km/h from SW, gusts 7 mph12 km/h	89%	82%	0
Mon 8a	Cloudy	52°11° (likely 51°11° to 55°13°)	52°11°	0%	1 mph2 km/h from SW, gusts 7 mph12 km/h	83%	81%	0
Mon 9a	Cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 7 mph12 km/h	75%	80%	1
Mon 10a	Cloudy	64°18° (likely 63°17° to 67°19°)	64°18°	0%	1 mph2 km/h from SW, gusts 9 mph14 km/h	60%	74%	2
Mon 11a	Cloudy	69°21° (likely 68°20° to 71°22°)	69°21°	0%	2 mph3 km/h from SW, gusts 10 mph16 km/h	51%	83%	3
Mon 12p	Cloudy	72°22° (likely 71°22° to 74°23°)	72°22°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	44%	83%	3
Mon 1p	Cloudy	74°23° (likely 73°23° to 76°24°)	74°23°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	40%	84%	4
Mon 2p	Cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	38%	84%	3
Mon 3p	Mostly cloudy	76°24° (likely 73°23° to 78°26°)	76°24°	0%	3 mph5 km/h from SW, gusts 8 mph14 km/h	36%	77%	3
Mon 4p	Mostly cloudy	75°24° (likely 72°22° to 77°25°)	75°24°	0%	2 mph3 km/h from SW, gusts 8 mph12 km/h	38%	61%	2
Mon 5p	Mostly cloudy	72°22° (likely 69°21° to 76°24°)	72°22°	0%	1 mph2 km/h from SW, gusts 7 mph11 km/h	43%	62%	1

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Cloudy. High 73°23°, low 47°8°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
2. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 47. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
72°22°–74°23°
Low, likely
44°7°–47°8°
Wind
7 mph11 km/h, gusts 13 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 75°24°, low 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 75. Southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 50. South wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
45°7°–50°10°
Wind
7 mph10 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 76°24°, low 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Official NWS forecast
Day: Partly sunny. High near 76, with temperatures falling to around 72 in the afternoon. Southwest wind 0 to 3 mph.
Night: Partly cloudy, with a low around 49. South wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
49°9°–52°11°
Wind
8 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 74°23°, low 51°11°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 74.
Night: Mostly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–74°23°
Low, likely
50°10°–54°12°
Wind
8 mph12 km/h, gusts 15 mph23 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 78°26°, low 53°12°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 63°17°
  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 78.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–78°26°
Low, likely
48°9°–54°12°
Wind
11 mph18 km/h, gusts 18 mph29 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 80°27°, low 53°12°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  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, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 80.
Night: Mostly clear, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
77°25°–80°27°
Low, likely
51°11°–56°13°
Wind
13 mph21 km/h, gusts 22 mph36 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 79°26°, low 56°13°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 79.
Night: Mostly cloudy, with a low around 56.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–80°27°
Low, likely
51°11°–56°13°
Wind
11 mph18 km/h, gusts 20 mph32 km/h
UV peak
4
Saturday, Oct 31. Drizzle. High 75°24°, low 58°14°. Rain 0.06 in1.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°15°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 68°20°
  40% chance · 0.03 in0.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 64°18°
  50% chance · 0.14 in3.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 7am. Partly sunny, with a high near 75. Chance of precipitation is 20%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–79°26°
Low, likely
53°12°–62°17°
Wind
17 mph27 km/h, gusts 33 mph54 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 74°23°, low 63°17°. Rain 0.38 in9.7 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 66°19°
  50% chance · 0.04 in1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  40% chance
3. Evening
  6 PM–midnight
  Cloudy, 69°21°
  30% chance · 0.17 in4.2 mm
4. Overnight
  midnight–6 AM
  Drizzle, 58°14°
  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
71°22°–81°27°
Low, likely
60°16°–67°19°
Wind
21 mph34 km/h, gusts 39 mph62 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 72°22°, low 56°13°. Rain 0.29 in7.4 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  30% chance · 0.07 in1.7 mm
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  30% chance · 0.01 in0.4 mm
3. Evening
  6 PM–midnight
  Mostly clear, 58°14°
  30% chance · 0.13 in3.4 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–77°25°
Low, likely
37°3°–64°18°
Wind
20 mph32 km/h, gusts 36 mph57 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 47°.
Tomorrow
Dry, high 75°, low 50°.
Monday
Dry, high 76°, low 49°.
Rest of week
Highs 72–80°; chance of precipitation on Sunday.

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

Kaskaskia River at Vandalia

13 mi

Below flood stage

Level: 2.8 ft
Flow: 93 cfs

Reading from Sat 6 PM · NWS gauge page

Kaskaskia River near Cowden

14 mi

Below flood stage

Level: 2.3 ft
Flow: 60 cfs

Reading from Sat 6 PM · NWS gauge page

Little Wabash River near Effingham

15 mi

Below flood stage

Level: 10.4 ft
Flow: 1 cfs

Reading from Sat 5:30 PM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 21 s a day; shortest Dec 21, 1 h 24 min less
Golden hour: 5:27–6:21 PM; Morning 6:57–7:51 AM
Blue hour: 6:21–6:31 PM; Morning 6:47–6:57 AM; first light 6:47 AM

Stars tonight? Fair

Mostly clear 8 PM–2 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:29 AM · rises 5:01 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from St. Elmo. The highest point on the skyline is about 1,600 ft, 26 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

St. Elmo, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Kaskaskia River at Vandalia

Kaskaskia River near Cowden

Little Wabash River near Effingham

Sun & moon

Sun

Stars tonight? Fair

Moon