LaSalle County, Illinois, United States

Last updated: 7:41 PM CDT · Refresh

23°C

Feels like 24°

Mostly Clear

▲ 26° / ▼ 14°

Wind

2 mph E

Humidity

62%

Dew Point

14°

Pressure

29.48 inHg

Visibility

10 mi

UV Index

2.3

Cloud Cover

20%

Sunrise

5:22 AM

Sunset

8:32 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: LaSalle County is currently mostly clear at 23°C. Precipitation is likely — peak probability 76% around 1 PM. Atmospheric instability is elevated (CAPE up to 1219 J/kg) — isolated convective development possible. Sunrise: 5:22AM · Sunset: 8:32PM.

37 AQI · Good Dominant: O3 Air Quality

Hourly Forecast · Next 24 Hours

Now

23°

11%

8 PM

23°

31%

9 PM

21°

23%

10 PM

19°

23%

11 PM

18°

16%

12 AM

18°

16%

1 AM

16°

13%

2 AM

16°

13%

3 AM

17°

27%

4 AM

17°

16%

5 AM

16°

16%

6 AM

16°

11%

7 AM

17°

36%

8 AM

18°

39%

9 AM

21°

41%

10 AM

22°

51%

11 AM

22°

65%

12 PM

23°

72%

1 PM

23°

76%

2 PM

25°

65%

3 PM

25°

57%

4 PM

25°

60%

5 PM

24°

64%

6 PM

24°

65%

7-Day Forecast

Tonight

26° 14°

Mostly Clear with a 23% chance of rain.

Wed

26° 14°

Rain, 76% chance.

Thu

27° 17°

Mostly Cloudy.

Fri

27° 15°

Drizzle, 52% chance.

Sat

29° 18°

Rain, 46% chance.

Sun

33° 21°

Clear with a 66% chance of rain.

Mon

33° 23°

Clear.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 23° Mostly Clear 11% 2 mph E 62%

8 PM 23° Partly Cloudy 31% 3 mph SE 68%

9 PM 21° Rain 23% 4 mph SE 72%

10 PM 19° Rain 23% 4 mph SE 78%

11 PM 18° Drizzle 16% 5 mph SE 83%

12 AM 18° Drizzle 16% 5 mph SE 87%

1 AM 16° Partly Cloudy 13% 5 mph SE 87%

2 AM 16° Partly Cloudy 13% 6 mph SE 85%

3 AM 17° Mostly Cloudy 27% 6 mph SSE 84%

4 AM 17° Mostly Cloudy 16% 6 mph SSE 84%

5 AM 16° Partly Cloudy 16% 5 mph S 84%

6 AM 16° Mostly Cloudy 11% 6 mph S 84%

7 AM 17° Drizzle 36% 7 mph SSW 83%

8 AM 18° Drizzle 39% 8 mph SSW 80%

9 AM 21° Drizzle 41% 9 mph SSW 78%

10 AM 22° Rain 51% 10 mph SSW 76%

11 AM 22° Rain 65% 11 mph SW 74%

12 PM 23° Rain 72% 12 mph SW 72%

1 PM 23° Rain 76% 12 mph SW 75%

2 PM 25° Rain 65% 12 mph SW 78%

3 PM 25° Rain 57% 12 mph SW 80%

4 PM 25° Rain 60% 11 mph SW 81%

5 PM 24° Rain 64% 11 mph SW 82%

6 PM 24° Rain 65% 10 mph SW 84%

15-Day Forecast

Today

6/23

Mostly Clear

23%

14°

26°

Wed

6/24

Rain

76%

14°

26°

Thu

6/25

Mostly Cloudy

17%

17°

27°

Fri

6/26

Drizzle

52%

15°

27°

Sat

6/27

Rain

46%

18°

29°

Sun

6/28

Clear

66%

21°

33°

Mon

6/29

Clear

13%

23°

33°

Tue

6/30

Clear

21%

24°

33°

Wed

7/1

Thunderstorm

50%

24°

34°

Thu

7/2

Thunderstorm

67%

25°

35°

Fri

7/3

Thunderstorm

67%

24°

37°

Sat

7/4

Thunderstorm

71%

21°

37°

Sun

7/5

Thunderstorm

66%

20°

37°

Mon

7/6

Thunderstorm

66%

19°

37°

Tue

7/7

Thunderstorm

66%

20°

37°

Good

U.S. Air Quality Index · Dominant: O3

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

23 AQI 4.1 µg/m³

O₃

Ground-level ozone

Dominant

37 AQI 41 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 37 Good 37 23

Thu 43 Good 38 43

Fri 38 Good 38 20

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 Tue Jun 23, 23:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE35 J/kg

MLCAPE4 J/kg

MUCAPE35 J/kg

SBCIN-75 J/kg

MLCIN0 J/kg

Lifted Index3.3

Kinematics

0–6 km Shear34 kt

0–1 km Shear4 kt

Eff. Shear—

0–1 km SRH-13

0–3 km SRH-77

Eff. SRH—

Storm Motion249° @ 17 kt

0–1 km EHI-0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)—

Supercell—

K-Index23.5

Thermo & Levels

PWAT1.06 in

0–3 km LR6.9 °C/km

700–500 LR4.8 °C/km

Total Totals39.0

LCL866 hPa

LFC824 hPa

EL702 hPa

Freezing Lvl12,280 ft

LaSalle County, Illinois, United States

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