Observed 12:00 AM CDT at KSPI

Petersburg, IL weather

Clear and 54°12°, 12°7° warmer than a typical Oct 24.

Mostly agree

Now 54°12°

Clear

Wind: 8 mph13 km/h; From the east-southeast. 35–8 mph13 km/h through 12 PM
Dew point: 43°6°; Comfortable
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 59Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.29 inHg1026 hPa; Rising slowly · +0.03 inHg+0.9 hPa next 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 48°9° today at 7 AM
Above 60°16° today by 10 AM
High 76°24° today at 4 PM
Below 60°16° tonight after 9 PM

TonightDown to 49°9° by 4 AM · Clear
This morningUp to 68°20° by 11 AM · Mostly cloudy
This afternoonUp to 76°24° by 4 PM · Mostly cloudy
TonightDown to 50°10° by 4 AM · Partly cloudy
Tomorrow morningUp to 69°21° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 78°26° by 2 PM · Mostly cloudy
Tomorrow nightDown to 56°13° by 11 PM · 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 12a	Clear	53°12° (likely 53°12° to 57°14°)	53°12°	0%	5 mph8 km/h from SE, gusts 13 mph20 km/h	71%	20%	0
Sat 1a	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	5 mph8 km/h from SE, gusts 12 mph20 km/h	74%	27%	0
Sat 2a	Clear	51°11° (likely 51°11° to 55°13°)	51°11°	0%	5 mph8 km/h from SE, gusts 11 mph18 km/h	74%	23%	0
Sat 3a	Mostly clear	50°10° (likely 50°10° to 54°12°)	48°9°	0%	5 mph8 km/h from SSE, gusts 11 mph18 km/h	77%	24%	0
Sat 4a	Clear	49°9° (likely 49°9° to 53°12°)	47°8°	0%	5 mph8 km/h from SSE, gusts 11 mph17 km/h	81%	27%	0
Sat 5a	Clear	49°9° (likely 49°9° to 52°11°)	47°8°	0%	5 mph8 km/h from SE, gusts 10 mph16 km/h	83%	27%	0
Sat 6a	Partly cloudy	49°9° (likely 48°9° to 51°11°)	47°8°	0%	5 mph8 km/h from SE, gusts 8 mph14 km/h	83%	74%	0
Sat 7a	Partly sunny	48°9° (likely 47°8° to 51°11°)	46°8°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	86%	78%	0
Sat 8a	Cloudy	50°10° (likely 47°8° to 52°11°)	48°9°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	83%	81%	0
Sat 9a	Cloudy	54°12° (likely 54°12° to 56°13°)	54°12°	0%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	77%	74%	1
Sat 10a	Cloudy	62°17° (likely 60°16° to 62°17°)	62°17°	0%	6 mph10 km/h from SSE, gusts 13 mph20 km/h	60%	75%	2
Sat 11a	Partly sunny	68°20° (likely 65°18° to 68°20°)	68°20°	0%	6 mph10 km/h from SSE, gusts 13 mph20 km/h	51%	72%	3
Sat 12p	Cloudy	71°22° (likely 68°20° to 71°22°)	71°22°	0%	6 mph10 km/h from S, gusts 10 mph16 km/h	44%	75%	4
Sat 1p	Cloudy	73°23° (likely 71°22° to 73°23°)	73°23°	0%	6 mph10 km/h from S, gusts 9 mph15 km/h	40%	77%	4
Sat 2p	Partly sunny	75°24° (likely 72°22° to 75°24°)	75°24°	0%	6 mph10 km/h from SSE, gusts 8 mph13 km/h	36%	71%	4
Sat 3p	Cloudy	75°24° (likely 73°23° to 75°24°)	75°24°	0%	5 mph8 km/h from SSE, gusts 8 mph12 km/h	36%	78%	3
Sat 4p	Cloudy	76°24° (likely 72°22° to 76°24°)	76°24°	0%	6 mph10 km/h from SSE, gusts 8 mph13 km/h	34%	66%	2
Sat 5p	Cloudy	74°23° (likely 70°21° to 74°23°)	74°23°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	37%	74%	1
Sat 6p	Mostly clear	71°22° (likely 65°18° to 71°22°)	71°22°	0%	5 mph8 km/h from SE, gusts 9 mph15 km/h	41%	64%	0
Sat 7p	Mostly clear	66°19° (likely 63°17° to 66°19°)	66°19°	0%	5 mph8 km/h from SE, gusts 9 mph14 km/h	50%	46%	0
Sat 8p	Mostly clear	60°16° (likely 60°16° to 62°17°)	60°16°	0%	5 mph8 km/h from SE, gusts 10 mph16 km/h	60%	42%	0
Sat 9p	Mostly clear	58°14° (likely 58°14° to 61°16°)	58°14°	0%	3 mph5 km/h from SSE, gusts 11 mph17 km/h	64%	43%	0
Sat 10p	Mostly clear	57°14° (likely 57°14° to 59°15°)	57°14°	0%	3 mph5 km/h from SSE, gusts 11 mph17 km/h	64%	44%	0
Sat 11p	Mostly clear	55°13° (likely 55°13° to 58°14°)	55°13°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	69%	37%	0
Sun 12a	Partly cloudy	54°12° (likely 54°12° to 57°14°)	54°12°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	71%	47%	0
Sun 1a	Mostly clear	53°12° (likely 53°12° to 56°13°)	53°12°	0%	3 mph5 km/h from SSE, gusts 12 mph20 km/h	71%	45%	0
Sun 2a	Mostly clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	3 mph5 km/h from SSE, gusts 12 mph19 km/h	74%	33%	0
Sun 3a	Cloudy	51°11° (likely 51°11° to 54°12°)	51°11°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	77%	58%	0
Sun 4a	Clear	50°10° (likely 50°10° to 53°12°)	49°9°	0%	3 mph5 km/h from SSE, gusts 10 mph17 km/h	77%	20%	0
Sun 5a	Partly cloudy	50°10° (likely 50°10° to 52°11°)	49°9°	0%	3 mph5 km/h from SSE, gusts 10 mph15 km/h	77%	42%	0
Sun 6a	Partly cloudy	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from SSE, gusts 9 mph15 km/h	80%	56%	0
Sun 7a	Mostly sunny	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from SSE, gusts 10 mph16 km/h	80%	59%	0
Sun 8a	Partly sunny	50°10° (likely 49°9° to 52°11°)	49°9°	0%	3 mph5 km/h from SSE, gusts 9 mph15 km/h	80%	60%	0
Sun 9a	Partly sunny	56°13° (likely 55°13° to 57°14°)	56°13°	0%	3 mph5 km/h from SSE, gusts 8 mph14 km/h	69%	61%	1
Sun 10a	Cloudy	64°18° (likely 61°16° to 64°18°)	64°18°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	56%	64%	2
Sun 11a	Cloudy	69°21° (likely 66°19° to 71°22°)	69°21°	0%	3 mph5 km/h from S, gusts 10 mph16 km/h	49%	77%	3
Sun 12p	Cloudy	73°23° (likely 70°21° to 75°24°)	73°23°	0%	3 mph5 km/h from S, gusts 8 mph13 km/h	43%	76%	3
Sun 1p	Partly sunny	75°24° (likely 73°23° to 78°26°)	75°24°	0%	3 mph5 km/h from S, gusts 7 mph11 km/h	40%	75%	4
Sun 2p	Cloudy	78°26° (likely 74°23° to 79°26°)	78°26°	0%	3 mph5 km/h from S, gusts 6 mph10 km/h	36%	76%	4
Sun 3p	Cloudy	78°26° (likely 75°24° to 80°27°)	78°26°	0%	3 mph5 km/h from S, gusts 6 mph10 km/h	35%	78%	3
Sun 4p	Cloudy	78°26° (likely 75°24° to 80°27°)	78°26°	0%	3 mph5 km/h from S, gusts 6 mph9 km/h	35%	80%	2
Sun 5p	Cloudy	76°24° (likely 73°23° to 77°25°)	76°24°	0%	3 mph5 km/h from S, gusts 6 mph9 km/h	37%	83%	1
Sun 6p	Mostly cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	3 mph5 km/h from S, gusts 5 mph7 km/h	44%	80%	0
Sun 7p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	3 mph5 km/h from SSE, gusts 5 mph8 km/h	51%	90%	0
Sun 8p	Cloudy	65°18° (likely 62°17° to 65°18°)	65°18°	0%	3 mph5 km/h from SSE, gusts 4 mph6 km/h	56%	89%	0
Sun 9p	Cloudy	61°16° (likely 61°16° to 64°18°)	61°16°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	62%	90%	0
Sun 10p	Cloudy	58°14° (likely 58°14° to 64°18°)	58°14°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	69%	87%	0
Sun 11p	Mostly cloudy	56°13° (likely 56°13° to 63°17°)	56°13°	0%	2 mph3 km/h from S, gusts 4 mph7 km/h	74%	80%	0

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. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 76. South southeast wind around 6 mph.
Tonight: Partly cloudy, with a low around 47. Southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–76°24°
Low, likely
47°8°–51°11°
Typical high / low
64°18° / 42°6°
Wind
9 mph15 km/h, gusts 18 mph29 km/h
UV peak
4
Tomorrow, Oct 25. Partly sunny. High 78°26°, low 50°10°. Typical 63°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 78. South southeast wind around 3 mph.
Night: Mostly cloudy, with a low around 50. South wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
49°9°–51°11°
Typical high / low
63°17° / 42°6°
Wind
7 mph12 km/h, gusts 18 mph29 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 77°25°, low 49°9°. Typical 62°17° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 77. South wind around 3 mph.
Night: Mostly cloudy, with a low around 49. Southeast wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
76°24°–77°25°
Low, likely
49°9°–57°14°
Typical high / low
62°17° / 41°5°
Wind
7 mph11 km/h, gusts 12 mph19 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 75°24°, low 50°10°. Typical 62°17° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 75.
Night: Mostly cloudy, with a low around 50.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
72°22°–75°24°
Low, likely
50°10°–57°14°
Typical high / low
62°17° / 41°5°
Wind
10 mph15 km/h, gusts 24 mph38 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 77°25°, low 52°11°. Typical 62°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 60°15°
  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
75°24°–77°25°
Low, likely
52°11°–57°14°
Typical high / low
62°17° / 41°5°
Wind
11 mph18 km/h, gusts 23 mph37 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 74°23°, low 45°7°. Typical 61°16° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 61°16°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  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. Partly cloudy, with a low around 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
73°23°–81°27°
Low, likely
45°7°–60°16°
Typical high / low
61°16° / 40°4°
Wind
17 mph27 km/h, gusts 27 mph44 km/h
UV peak
3
Friday, Oct 30. Showers. High 70°21°, low 56°13°. Typical 60°16° / 40°4°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 61°16°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers. Mostly sunny, with a high near 70.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
70°21°–79°26°
Low, likely
52°11°–60°16°
Typical high / low
60°16° / 40°4°
Wind
11 mph18 km/h, gusts 29 mph47 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 75°24°, low 60°16°. Typical 60°16° / 40°4°. Rain 0.17 in4.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 64°18°
  30% chance
2. Afternoon
  noon–6 PM
  Drizzle, 75°24°
  40% chance
3. Evening
  6 PM–midnight
  Rain, 67°20°
  40% chance · 0.07 in1.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 65°18°
  40% chance · 0.03 in0.9 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
70°21°–81°27°
Low, likely
57°14°–62°17°
Typical high / low
60°16° / 40°4°
Wind
14 mph23 km/h, gusts 27 mph44 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 69°21°, low 62°17°. Typical 60°16° / 39°4°. Rain 0.43 in11 mm, 40% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 65°18°
  40% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Drizzle, 68°20°
  40% chance · 0.22 in5.6 mm
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  40% chance · 0.24 in6 mm
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  30% chance · 0.11 in2.7 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
68°20°–70°21°
Low, likely
58°14°–65°18°
Typical high / low
60°16° / 39°4°
Wind
22 mph35 km/h, gusts 39 mph63 km/h
UV peak
3
Monday, Nov 2. Showers. High 66°19°, low 53°12°. Typical 59°15° / 39°4°. Rain 0.35 in8.9 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°15°
  20% chance · 0.06 in1.5 mm
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  20% chance · 0.04 in1.1 mm
3. Evening
  6 PM–midnight
  Showers, 58°14°
  20% chance · 0.03 in0.8 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°–71°22°
Low, likely
48°9°–59°15°
Typical high / low
59°15° / 39°4°
Wind
17 mph27 km/h, gusts 37 mph60 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 76°, low 47°.
Tomorrow
Dry, high 78°, low 50°.
Monday
Dry, high 77°, low 49°.
Rest of week
Highs 66–77°; chance of precipitation on Sunday.

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

Illinois River near Havana

23 mi

Below flood stage

Level: 7.0 ft
Flow: 7,770 cfs

Forecast peak 6.9 ft Sat 1 AM

Reading from Fri 11:45 PM · NWS gauge page

Sangamon River at Petersburg

0.4 mi

Below flood stage

Level: 4.3 ft
Flow: 129 cfs

Reading from Fri 11:15 PM · NWS gauge page

Salt Creek (IL) near Greenview

10 mi

Below flood stage

Level: 1.3 ft
Flow: 205 cfs

Reading from Fri 11:45 PM · NWS gauge page

Sangamon River near Oakford

11 mi

Below flood stage

Level: 456 ft
Flow: 544 cfs

Reading from Fri 11:45 PM · NWS gauge page

For your home

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

Heating this week

About 86% less heating than a typical week.

This week 14Typical 95

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 10:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

Springfield Abraham Lincoln Capital Airport · official normals 1991–2020 · records 1879–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 1°0° colder than normal (daily mean temperature).

−8°−5°SatOct 17
−3°−2°SunOct 18
−1°MonOct 19
+1°TueOct 20
+4°+2°WedOct 21
+6°+3°ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 28 min less
Golden hour: 5:29–6:23 PM; Morning 7:02–7:57 AM
Blue hour: 6:23–6:34 PM; Morning 6:51–7:02 AM; first light 6:51 AM

Stars tonight? Fair

Mostly clear 2–4 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 5:34 AM · rises 5:04 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Petersburg. The highest point on the skyline is about 2,400 ft, 21 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Petersburg, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Illinois River near Havana

Sangamon River at Petersburg

Salt Creek (IL) near Greenview

Sangamon River near Oakford

For your home

Heating this week

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