Sangamon County, Illinois, United States

Last updated: 7:11 PM CDT · Refresh

26°C

Feels like 30°

Mostly Cloudy

▲ 32° / ▼ 19°

Wind

6 mph N

Humidity

87%

Dew Point

23°

Pressure

29.29 inHg

Visibility

10 mi

UV Index

2.1

Cloud Cover

78%

Sunrise

5:35 AM

Sunset

8:30 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Sangamon County is currently mostly cloudy at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2159 J/kg) — isolated convective development possible. Sunrise: 5:35AM · Sunset: 8:30PM.

56 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

26°

17%

8 PM

26°

37%

9 PM

24°

42%

10 PM

24°

33%

11 PM

24°

32%

12 AM

23°

19%

1 AM

22°

2 AM

22°

3 AM

21°

20%

4 AM

21°

20%

5 AM

19°

23%

6 AM

19°

15%

7 AM

20°

19%

8 AM

21°

19%

9 AM

22°

24%

10 AM

23°

33%

11 AM

24°

34%

12 PM

24°

34%

1 PM

26°

34%

2 PM

27°

34%

3 PM

27°

34%

4 PM

26°

24%

5 PM

28°

27%

6 PM

27°

20%

7-Day Forecast

Tonight

32° 19°

Mostly Cloudy with a 33% chance of rain.

Sun

28° 19°

Mostly Cloudy with a 34% chance of rain.

Mon

28° 18°

Mostly Clear with a 26% chance of rain.

Tue

29° 17°

Partly Cloudy.

Wed

29° 18°

Partly Cloudy.

Thu

28° 21°

Heavy Rain, 90% chance.

Fri

27° 19°

Rain, 64% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 26° Mostly Cloudy 17% 6 mph N 87%

8 PM 26° Overcast 37% 4 mph NNE 90%

9 PM 24° Overcast 42% 2 mph N 92%

10 PM 24° Overcast 33% 3 mph NNW 94%

11 PM 24° Overcast 32% 3 mph WNW 95%

12 AM 23° Overcast 19% 3 mph NW 96%

1 AM 22° Overcast 7% 4 mph NW 96%

2 AM 22° Mostly Cloudy 7% 3 mph NNW 96%

3 AM 21° Partly Cloudy 20% 3 mph NNW 96%

4 AM 21° Mostly Cloudy 20% 3 mph NNW 96%

5 AM 19° Mostly Cloudy 23% 3 mph NNW 96%

6 AM 19° Mostly Cloudy 15% 4 mph NNW 96%

7 AM 20° Fog 19% 5 mph NNW 95%

8 AM 21° Overcast 19% 5 mph NNW 92%

9 AM 22° Mostly Cloudy 24% 5 mph N 88%

10 AM 23° Mostly Cloudy 33% 6 mph NNW 84%

11 AM 24° Mostly Cloudy 34% 6 mph N 81%

12 PM 24° Mostly Cloudy 34% 6 mph N 78%

1 PM 26° Mostly Cloudy 34% 6 mph N 75%

2 PM 27° Mostly Cloudy 34% 6 mph N 75%

3 PM 27° Mostly Cloudy 34% 5 mph N 75%

4 PM 26° Mostly Cloudy 24% 6 mph NNW 76%

5 PM 28° Mostly Cloudy 27% 6 mph N 78%

6 PM 27° Partly Cloudy 20% 7 mph N 80%

15-Day Forecast

Today

7/4

Mostly Cloudy

33%

19°

32°

Sun

7/5

Mostly Cloudy

34%

19°

28°

Mon

7/6

Mostly Clear

26%

18°

28°

Tue

7/7

Partly Cloudy

14%

17°

29°

Wed

7/8

Partly Cloudy

16%

18°

29°

Thu

7/9

Heavy Rain

90%

21°

28°

Fri

7/10

Rain

64%

19°

27°

Sat

7/11

Clear

44%

18°

26°

Sun

7/12

Drizzle

43%

16°

26°

Mon

7/13

Clear

44%

16°

28°

Tue

7/14

Drizzle

60%

17°

29°

Wed

7/15

Drizzle

60%

18°

29°

Thu

7/16

Drizzle

60%

17°

26°

Fri

7/17

Drizzle

60%

17°

26°

Sat

7/18

Drizzle

60%

18°

27°

Moderate

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

56 AQI 11.8 µg/m³

O₃

Ground-level ozone

35 AQI 39 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 56 Moderate 35 56

Mon 48 Good 42 48

Tue 60 Moderate 40 60

About the Air Quality Index

0–50 Good

51–100 Moderate

101–150 Unhealthy for Sensitive Groups

151–200 Unhealthy

201–300 Very Unhealthy

301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Sat Jul 4, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE1686 J/kg

MLCAPE2416 J/kg

MUCAPE2962 J/kg

SBCIN-42 J/kg

MLCIN0 J/kg

Lifted Index-5.4

Kinematics

0–6 km Shear14 kt

0–1 km Shear16 kt

Eff. Shear17 kt

0–1 km SRH-84

0–3 km SRH-120

Eff. SRH-120

Storm Motion228° @ 16 kt

0–1 km EHI-0.9

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index39.0

Thermo & Levels

PWAT2.06 in

0–3 km LR6.1 °C/km

700–500 LR5.7 °C/km

Total Totals49.4

LCL942 hPa

LFC867 hPa

EL179 hPa

Freezing Lvl14,862 ft

Sangamon County, Illinois, United States

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