Observed 11:55 AM CDT at K1H2

Altamont, IL weather

Sunny and 69°21°, jacket by 9 PM.

Forecasts agree

Now 69°21°

Sunny

Wind: 6 mph9 km/h; From the east-southeast. Up to 6 mph10 km/h through 1 AM
Dew point: 45°7°; Comfortable
UV index: 4Moderate; Moderate until 4 PM
Pressure: 30.41 inHg1030 hPa; Falling · −0.06 inHg−1.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (70°21° then, 69°21° now)

Good hours for

High 74°23° today at 3 PM
Below 60°16° tonight after 8 PM
Low 46°8° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM

This afternoonNear 72°22° · Partly cloudy
TonightDown to 47°8° by 4 AM · Clear
Tomorrow morningUp to 66°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 75°24° by 3 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 4 AM · Mostly cloudy
Monday morningUp to 69°21° 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 1p	Partly sunny	71°22° (likely 69°21° to 72°22°)	71°22°	0%	6 mph10 km/h from ESE, gusts 8 mph13 km/h	42%	61%	4
Sat 2p	Cloudy	73°23° (likely 70°21° to 73°23°)	73°23°	0%	6 mph10 km/h from ESE, gusts 8 mph12 km/h	38%	68%	4
Sat 3p	Mostly sunny	74°23° (likely 71°22° to 74°23°)	74°23°	0%	5 mph8 km/h from ESE, gusts 8 mph13 km/h	34%	35%	3
Sat 4p	Cloudy	74°23° (likely 70°21° to 74°23°)	74°23°	0%	5 mph8 km/h from ESE, gusts 9 mph14 km/h	33%	66%	1
Sat 5p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	3 mph5 km/h from ESE, gusts 9 mph15 km/h	35%	63%	0
Sat 6p	Partly cloudy	67°19° (likely 62°17° to 67°19°)	67°19°	0%	3 mph5 km/h from ESE, gusts 7 mph12 km/h	43%	40%	0
Sat 7p	Partly cloudy	62°17° (likely 59°15° to 63°17°)	62°17°	0%	2 mph3 km/h from ESE, gusts 7 mph12 km/h	54%	30%	0
Sat 8p	Mostly clear	56°13° (likely 56°13° to 60°16°)	56°13°	0%	2 mph3 km/h from ESE, gusts 9 mph15 km/h	68%	45%	0
Sat 9p	Clear	54°12° (likely 54°12° to 58°14°)	54°12°	0%	2 mph3 km/h from ESE, gusts 9 mph14 km/h	73%	35%	0
Sat 10p	Clear	53°12° (likely 53°12° to 57°14°)	53°12°	0%	2 mph3 km/h from ESE, gusts 8 mph13 km/h	76%	0%	0
Sat 11p	Clear	51°11° (likely 51°11° to 55°13°)	51°11°	0%	1 mph2 km/h from ESE, gusts 8 mph13 km/h	81%	0%	0
Sun 12a	Clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	1 mph2 km/h from ESE, gusts 6 mph10 km/h	84%	0%	0
Sun 1a	Clear	50°10° (likely 49°9° to 52°11°)	50°10°	0%	1 mph2 km/h from ESE, gusts 5 mph9 km/h	87%	0%	0
Sun 2a	Clear	49°9° (likely 48°9° to 51°11°)	49°9°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	90%	2%	0
Sun 3a	Mostly clear	48°9° (likely 48°9° to 50°10°)	48°9°	0%	1 mph2 km/h from ESE, gusts 4 mph7 km/h	94%	26%	0
Sun 4a	Mostly clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	98%	26%	0
Sun 5a	Mostly clear	47°8° (likely 46°8° to 48°9°)	47°8°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	94%	66%	0
Sun 6a	Mostly clear	47°8° (likely 45°7° to 48°9°)	47°8°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	94%	66%	0
Sun 7a	Cloudy	46°8° (likely 45°7° to 48°9°)	46°8°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	95%	81%	0
Sun 8a	Cloudy	48°9° (likely 46°8° to 50°10°)	48°9°	0%	1 mph2 km/h from ESE, gusts 5 mph8 km/h	94%	79%	0
Sun 9a	Partly sunny	53°12° (likely 52°11° to 56°13°)	53°12°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	85%	74%	1
Sun 10a	Mostly sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	65%	61%	2
Sun 11a	Mostly sunny	66°19° (likely 65°18° to 68°20°)	66°19°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	54%	60%	3
Sun 12p	Mostly sunny	70°21° (likely 68°20° to 72°22°)	70°21°	0%	2 mph3 km/h from SSE, gusts 5 mph8 km/h	46%	50%	4
Sun 1p	Partly sunny	73°23° (likely 71°22° to 75°24°)	73°23°	0%	1 mph2 km/h from SSE, gusts 5 mph7 km/h	39%	74%	4
Sun 2p	Cloudy	74°23° (likely 72°22° to 76°24°)	74°23°	0%	1 mph2 km/h from SSE, gusts 4 mph7 km/h	37%	67%	4
Sun 3p	Cloudy	75°24° (likely 72°22° to 77°25°)	75°24°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	35%	78%	3
Sun 4p	Cloudy	75°24° (likely 72°22° to 76°24°)	75°24°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	33%	68%	2
Sun 5p	Cloudy	74°23° (likely 70°21° to 75°24°)	74°23°	0%	1 mph2 km/h from ESE, gusts 5 mph7 km/h	37%	66%	1
Sun 6p	Cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	0 mph0 km/h, gusts 4 mph6 km/h	41%	59%	0
Sun 7p	Cloudy	65°18° (likely 62°17° to 66°19°)	65°18°	0%	1 mph2 km/h from ESE, gusts 4 mph7 km/h	53%	60%	0
Sun 8p	Cloudy	60°16° (likely 60°16° to 63°17°)	60°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	64%	68%	0
Sun 9p	Cloudy	58°14° (likely 58°14° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	69%	62%	0
Sun 10p	Cloudy	56°13° (likely 56°13° to 59°15°)	56°13°	0%	0 mph0 km/h, gusts 5 mph9 km/h	74%	79%	0
Sun 11p	Cloudy	55°13° (likely 55°13° to 58°14°)	55°13°	0%	0 mph0 km/h, gusts 6 mph9 km/h	77%	77%	0
Mon 12a	Cloudy	54°12° (likely 54°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	80%	80%	0
Mon 1a	Cloudy	53°12° (likely 53°12° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 7 mph12 km/h	83%	81%	0
Mon 2a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 8 mph12 km/h	83%	79%	0
Mon 3a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 8 mph12 km/h	83%	82%	0
Mon 4a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 8 mph12 km/h	87%	87%	0
Mon 5a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 7 mph12 km/h	87%	73%	0
Mon 6a	Partly cloudy	50°10° (likely 50°10° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 7 mph11 km/h	88%	74%	0
Mon 7a	Cloudy	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 6 mph10 km/h	85%	66%	0
Mon 8a	Partly sunny	52°11° (likely 50°10° to 58°14°)	52°11°	0%	0 mph0 km/h, gusts 4 mph7 km/h	88%	86%	0
Mon 9a	Cloudy	57°14° (likely 56°13° to 62°17°)	57°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	77%	83%	1
Mon 10a	Partly sunny	64°18° (likely 64°18° to 66°19°)	64°18°	0%	1 mph2 km/h from SSW, gusts 7 mph11 km/h	63%	62%	2
Mon 11a	Cloudy	69°21° (likely 67°19° to 71°22°)	69°21°	0%	1 mph2 km/h from SSW, gusts 9 mph14 km/h	53%	88%	3
Mon 12p	Mostly cloudy	72°22° (likely 70°21° to 75°24°)	72°22°	0%	2 mph3 km/h from SW, gusts 9 mph15 km/h	45%	78%	3

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Partly sunny. High 74°23°, low 46°8°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Mostly sunny, 74°23°
  Dry
2. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
3. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 74. East southeast wind around 6 mph.
Tonight: Mostly clear, with a low around 46. East southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–74°23°
Low, likely
44°7°–46°8°
Wind
7 mph12 km/h, gusts 14 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
  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 2 mph.
Night: Mostly cloudy, with a low around 50. Northeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–77°25°
Low, likely
45°7°–50°10°
Wind
6 mph9 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 77°25°, low 49°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°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
  Cloudy, 52°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 77. West southwest wind around 2 mph.
Night: Partly cloudy, with a low around 49. West northwest wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–77°25°
Low, likely
49°9°–53°12°
Wind
8 mph13 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 74°23°, low 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 74. Southeast wind 0 to 3 mph.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–74°23°
Low, likely
48°9°–55°13°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 77°25°, low 51°11°. 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, 54°12°
  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 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°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 76°24°, low 49°9°. 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, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 76.
Night: Partly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–81°27°
Low, likely
49°9°–56°13°
Wind
13 mph21 km/h, gusts 22 mph36 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 74°23°, low 50°10°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 74.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–80°27°
Low, likely
50°10°–57°14°
Wind
11 mph18 km/h, gusts 20 mph32 km/h
UV peak
4
Saturday, Oct 31. Drizzle. High 73°23°, low 59°15°. Rain 0.11 in2.8 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 74°24°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 68°20°
  40% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Drizzle, 63°17°
  50% chance · 0.17 in4.3 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–76°24°
Low, likely
56°13°–61°16°
Wind
15 mph24 km/h, gusts 26 mph41 km/h
UV peak
2
Sunday, Nov 1. Showers. High 73°23°, low 62°17°. Rain 0.63 in16 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 66°19°
  50% chance · 0.1 in2.5 mm
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  40% chance · 0.03 in0.9 mm
3. Evening
  6 PM–midnight
  Showers, 68°20°
  40% chance · 0.33 in8.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 54°12°
  40% chance · 0.07 in1.9 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
69°21°–79°26°
Low, likely
60°16°–63°17°
Wind
21 mph34 km/h, gusts 41 mph65 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 64°18°, low 49°9°. Rain 0.39 in9.9 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 52°11°
  40% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 53°12°
  40% chance · 0.15 in3.8 mm
3. Evening
  6 PM–midnight
  Drizzle, 52°11°
  40% chance · 0.05 in1.3 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
59°15°–72°22°
Low, likely
37°3°–65°18°
Wind
21 mph34 km/h, gusts 37 mph60 km/h

10 days15 days30 days

The outlook

Today
Dry, high 74°, low 46°.
Tomorrow
Dry, high 75°, low 50°.
Monday
Dry, high 77°, low 49°.
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

Little Wabash River near Effingham

8.8 mi

Below flood stage

Level: 10.4 ft
Flow: 1 cfs

Reading from Sat 11:30 AM · NWS gauge page

Kaskaskia River near Cowden

13 mi

Below flood stage

Level: 2.3 ft
Flow: 63 cfs

Reading from Sat 12 PM · NWS gauge page

Kaskaskia River at Vandalia

20 mi

Below flood stage

Level: 2.8 ft
Flow: 94 cfs

Reading from Sat 12 PM · NWS gauge page

Kaskaskia River at Shelbyville

24 mi

Below flood stage

Level: 536 ft
Flow: 70 cfs

Reading from Sat 12 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: 5:26–6:20 PM; Morning 6:57–7:50 AM
Blue hour: 6:20–6:31 PM; Morning 6:46–6:57 AM; first light 6:46 AM

Stars tonight? Fair

Mostly clear 10 PM–3 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:28 AM · rises 5:01 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Altamont. The highest point on the skyline is about 2,300 ft, 31 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Altamont, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Little Wabash River near Effingham

Kaskaskia River near Cowden

Kaskaskia River at Vandalia

Kaskaskia River at Shelbyville

Sun & moon

Sun

Stars tonight? Fair

Moon