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Current weather in LaSalle is clear sky.

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Weather data for LaSalle is updated regularly with the latest available observations and forecasts.

Now · 10:17 AM

LaSalle Weather & Hourly Forecast

United States · Illinois · 61301

72°F

Sunny

Feels like: 71°F

💧 Humidity 66% 🌡 Pressure 30.15 inHg 💨 Wind 8 mph 👁 Visibility 20.4 mi ☁ Clouds 2% ☀️ UV index 3.5 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for LaSalle

Today

11:00 AM

Mostly sunny

75° 💧 None 💨 8 mph H 56%30.15 inHg

2:00 PM

Mostly sunny

79° 💧 None 💨 6 mph H 51%30.12 inHg

5:00 PM

Mostly sunny

79° 💧 None 💨 6 mph H 54%30.06 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 8 mph H 65%30.09 inHg

11:00 PM

Partly cloudy night

68° 💧 None 💨 7 mph H 76%30.12 inHg

Tomorrow

2:00 AM

Overcast night

65° 💧 None 💨 6 mph H 83%30.12 inHg

5:00 AM

Overcast night

64° 💧 None 💨 6 mph H 82%30.12 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 6 mph H 82%30.12 inHg

11:00 AM

Mostly sunny

78° 💧 None 💨 7 mph H 59%30.09 inHg

2:00 PM

Partly cloudy

85° 💧 None 💨 8 mph H 47%30.06 inHg

5:00 PM

Sunny

85° 💧 None 💨 8 mph H 50%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 9 mph H 61%30.00 inHg

11:00 PM

Mostly cloudy night

77° 💧 None 💨 9 mph H 57%30.00 inHg

Wednesday

2:00 AM

Mostly clear night

76° 💧 None 💨 11 mph H 48%29.97 inHg

5:00 AM

Overcast night

76° 💧 0.015 in 💨 10 mph H 56%29.97 inHg

8:00 AM

Light thunderstorms

74° 💧 0.074 in 💨 8 mph H 80%30.00 inHg

Today

11:00 AM

Mostly sunny

75° 💧 None 💨 8 mph H 56%30.15 inHg

12:00 PM

Mostly sunny

77° 💧 None 💨 7 mph H 51%30.15 inHg

1:00 PM

Sunny

78° 💧 None 💨 6 mph H 50%30.15 inHg

2:00 PM

Mostly sunny

79° 💧 None 💨 6 mph H 51%30.12 inHg

3:00 PM

Partly cloudy

79° 💧 None 💨 6 mph H 52%30.09 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 7 mph H 52%30.09 inHg

5:00 PM

Mostly sunny

79° 💧 None 💨 6 mph H 54%30.06 inHg

6:00 PM

Mostly sunny

78° 💧 None 💨 5 mph H 59%30.06 inHg

7:00 PM

Mostly sunny

74° 💧 None 💨 6 mph H 67%30.09 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 8 mph H 65%30.09 inHg

9:00 PM

Overcast night

71° 💧 None 💨 8 mph H 66%30.09 inHg

10:00 PM

Partly cloudy night

70° 💧 None 💨 7 mph H 71%30.12 inHg

11:00 PM

Partly cloudy night

68° 💧 None 💨 7 mph H 76%30.12 inHg

Tomorrow

12:00 AM

Mostly clear night

67° 💧 None 💨 6 mph H 79%30.12 inHg

1:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 79%30.12 inHg

2:00 AM

Overcast night

65° 💧 None 💨 6 mph H 83%30.12 inHg

3:00 AM

Overcast night

64° 💧 None 💨 6 mph H 83%30.09 inHg

4:00 AM

Overcast night

64° 💧 None 💨 6 mph H 82%30.12 inHg

5:00 AM

Overcast night

64° 💧 None 💨 6 mph H 82%30.12 inHg

6:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 84%30.12 inHg

7:00 AM

Mostly cloudy

63° 💧 None 💨 6 mph H 86%30.12 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 6 mph H 82%30.12 inHg

9:00 AM

Partly cloudy

70° 💧 None 💨 5 mph H 75%30.12 inHg

10:00 AM

Mostly sunny

74° 💧 None 💨 5 mph H 67%30.12 inHg

11:00 AM

Mostly sunny

78° 💧 None 💨 7 mph H 59%30.09 inHg

12:00 PM

Mostly cloudy

81° 💧 None 💨 8 mph H 53%30.09 inHg

1:00 PM

Mostly cloudy

83° 💧 None 💨 8 mph H 50%30.06 inHg

2:00 PM

Partly cloudy

85° 💧 None 💨 8 mph H 47%30.06 inHg

3:00 PM

Sunny

85° 💧 None 💨 7 mph H 47%30.03 inHg

4:00 PM

Mostly sunny

86° 💧 None 💨 8 mph H 48%30.03 inHg

5:00 PM

Sunny

85° 💧 None 💨 8 mph H 50%30.00 inHg

6:00 PM

Partly cloudy

83° 💧 None 💨 8 mph H 54%30.00 inHg

7:00 PM

Sunny

80° 💧 None 💨 8 mph H 60%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 9 mph H 61%30.00 inHg

9:00 PM

Clear night

78° 💧 None 💨 8 mph H 61%30.03 inHg

10:00 PM

Overcast night

77° 💧 None 💨 8 mph H 60%30.03 inHg

11:00 PM

Mostly cloudy night

77° 💧 None 💨 9 mph H 57%30.00 inHg

Wednesday

12:00 AM

Mostly clear night

77° 💧 None 💨 9 mph H 54%30.00 inHg

1:00 AM

Clear night

76° 💧 None 💨 10 mph H 51%30.00 inHg

2:00 AM

Mostly clear night

76° 💧 None 💨 11 mph H 48%29.97 inHg

3:00 AM

Clear night

76° 💧 None 💨 11 mph H 50%29.97 inHg

4:00 AM

Overcast night

76° 💧 None 💨 12 mph H 52%29.97 inHg

5:00 AM

Overcast night

76° 💧 None 💨 10 mph H 56%29.97 inHg

6:00 AM

Overcast night

73° 💧 0.001 in 💨 11 mph H 66%30.03 inHg

7:00 AM

Light rain

72° 💧 0.013 in 💨 7 mph H 77%30.00 inHg

8:00 AM

Light thunderstorms

74° 💧 0.006 in 💨 8 mph H 80%30.00 inHg

9:00 AM

Light rain

74° 💧 0.015 in 💨 6 mph H 83%30.00 inHg

10:00 AM

Light thunderstorms

74° 💧 0.052 in 💨 9 mph H 91%30.00 inHg

11:00 AM

Light thunderstorms

76° 💧 0.036 in 💨 7 mph H 89%30.03 inHg

12:00 PM

Light rain

77° 💧 0.021 in 💨 7 mph H 80%30.03 inHg

1:00 PM

Light rain

80° 💧 0.012 in 💨 6 mph H 77%30.00 inHg

2:00 PM

Overcast

82° 💧 0.000 in 💨 8 mph H 70%29.97 inHg

3:00 PM

Overcast

83° 💧 0.000 in 💨 8 mph H 69%29.97 inHg

4:00 PM

Overcast

83° 💧 0.000 in 💨 7 mph H 69%29.94 inHg

5:00 PM

Overcast

82° 💧 0.001 in 💨 8 mph H 73%29.94 inHg

6:00 PM

Mostly cloudy

79° 💧 0.003 in 💨 8 mph H 82%29.94 inHg

7:00 PM

Mostly cloudy

77° 💧 None 💨 3 mph H 88%29.97 inHg

Thursday

4:00 AM

Overcast night

69° 💧 None 💨 6 mph H 99%29.97 inHg

7:00 AM

Partly cloudy

66° 💧 None 💨 5 mph H 95%30.00 inHg

10:00 AM

Overcast

73° 💧 None 💨 6 mph H 65%30.03 inHg

1:00 PM

Sunny

79° 💧 None 💨 6 mph H 49%30.00 inHg

4:00 PM

Mostly sunny

79° 💧 None 💨 6 mph H 47%29.94 inHg

7:00 PM

Sunny

72° 💧 None 💨 5 mph H 61%29.94 inHg

10:00 PM

Clear night

66° 💧 None 💨 5 mph H 72%30.00 inHg

Friday

1:00 AM

Clear night

63° 💧 None 💨 4 mph H 80%30.00 inHg

4:00 AM

Clear night

61° 💧 None 💨 4 mph H 91%30.00 inHg

7:00 AM

Sunny

60° 💧 None 💨 5 mph H 92%30.00 inHg

10:00 AM

Sunny

72° 💧 None 💨 7 mph H 59%30.00 inHg

1:00 PM

Sunny

78° 💧 None 💨 7 mph H 47%29.94 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 6 mph H 45%29.91 inHg

7:00 PM

Partly cloudy

73° 💧 None 💨 4 mph H 62%29.88 inHg

10:00 PM

Clear night

68° 💧 None 💨 6 mph H 74%29.88 inHg

Saturday

1:00 AM

Mostly clear night

68° 💧 None 💨 7 mph H 80%29.88 inHg

4:00 AM

Partly cloudy night

67° 💧 None 💨 7 mph H 85%29.85 inHg

7:00 AM

Overcast

68° 💧 None 💨 5 mph H 88%29.88 inHg

10:00 AM

Overcast

76° 💧 None 💨 8 mph H 75%29.88 inHg

1:00 PM

Overcast

79° 💧 None 💨 6 mph H 70%29.91 inHg

4:00 PM

Overcast

81° 💧 None 💨 8 mph H 65%29.91 inHg

7:00 PM

Sunny

75° 💧 None 💨 8 mph H 65%29.97 inHg

10:00 PM

Clear night

67° 💧 None 💨 8 mph H 71%30.06 inHg

Sunday

1:00 AM

Clear night

62° 💧 None 💨 5 mph H 78%30.09 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 7 mph H 78%30.03 inHg

1:00 PM

Sunny

61° 💧 None 💨 7 mph H 82%30.12 inHg

7:00 PM

Overcast

78° 💧 None 💨 4 mph H 54%30.12 inHg

Monday

1:00 AM

Mostly cloudy night

74° 💧 None 💨 6 mph H 58%30.06 inHg

7:00 AM

Overcast

67° 💧 None 💨 8 mph H 77%30.09 inHg

1:00 PM

Overcast

62° 💧 None 💨 9 mph H 94%30.06 inHg

7:00 PM

Sunny

87° 💧 None 💨 14 mph H 64%29.91 inHg

Tuesday

1:00 AM

Clear night

84° 💧 None 💨 15 mph H 68%29.77 inHg

7:00 AM

Moderate rain

74° 💧 None 💨 16 mph H 94%29.85 inHg

1:00 PM

Partly cloudy

64° 💧 None 💨 11 mph H 82%30.00 inHg

7:00 PM

Mostly sunny

73° 💧 None 💨 11 mph H 51%30.09 inHg

Wednesday

1:00 AM

Clear night

67° 💧 None 💨 8 mph H 67%30.15 inHg

7:00 AM

Sunny

58° 💧 None 💨 5 mph H 88%30.27 inHg

1:00 PM

Sunny

54° 💧 None 💨 4 mph H 90%30.36 inHg

7:00 PM

Mostly sunny

69° 💧 None 💨 7 mph H 53%30.39 inHg

Thursday

1:00 AM

Mostly cloudy night

65° 💧 None 💨 3 mph H 73%30.36 inHg

7:00 AM

Overcast

59° 💧 None 💨 2 mph H 87%30.39 inHg

1:00 PM

Mostly cloudy

56° 💧 None 💨 6 mph H 89%30.39 inHg

7:00 PM

Overcast

67° 💧 None 💨 7 mph H 55%30.39 inHg

Friday

1:00 AM

Partly cloudy night

60° 💧 None 💨 5 mph H 66%30.33 inHg

7:00 AM

Sunny

52° 💧 None 💨 4 mph H 88%30.33 inHg

1:00 PM

Sunny

51° 💧 None 💨 5 mph H 96%30.30 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 8 mph H 47%30.24 inHg

Saturday

1:00 AM

Clear night

67° 💧 None 💨 7 mph H 64%30.15 inHg

7:00 AM

Sunny

59° 💧 None 💨 6 mph H 87%30.15 inHg

1:00 PM

Sunny

55° 💧 None 💨 4 mph H 97%30.18 inHg

7:00 PM

Clear night

72° 💧 None 💨 5 mph H 48%30.15 inHg

Sunday

1:00 AM

Clear night

67° 💧 None 💨 1 mph H 66%30.09 inHg

7:00 AM

Sunny

58° 💧 None 💨 2 mph H 85%30.09 inHg

1:00 PM

Sunny

55° 💧 None 💨 4 mph H 83%30.06 inHg

7:00 PM

Overcast night

77° 💧 None 💨 9 mph H 40%30.00 inHg

Monday

1:00 AM

Overcast night

70° 💧 None 💨 4 mph H 58%29.94 inHg

7:00 AM

Overcast

62° 💧 None 💨 4 mph H 74%29.94 inHg

1:00 PM

Overcast

61° 💧 None 💨 6 mph H 81%29.97 inHg

7:00 PM

Mostly cloudy night

74° 💧 None 💨 5 mph H 58%29.97 inHg

Tuesday

1:00 AM

Mostly clear night

69° 💧 None 💨 3 mph H 72%29.94 inHg

In LaSalle and, more broadly, across the state of Illinois: The rest of the day will be mostly sunny with a few clouds, and temperatures will range from the mid-60s to low 80s. Expect mild to warm conditions, with the warmest temperatures occurring in the afternoon. Winds will be moderate from the east, reaching up to 10 mph, with gusts possibly hitting 22 mph. No precipitation is anticipated, so outdoor plans should be comfortable. As the day progresses, the weather will remain stable, making for pleasant conditions through the late afternoon.

15-Day Weather Outlook for LaSalle

TomorrowTomorrow

Mostly sunny 86°/63° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Light thunderstorms 83°/72° 💧 None 💨 12 mph

Thursday, Sep 10Thu Sep 10

Mostly cloudy 79°/66° 💧 0.048 in 💨 6 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 80°/60° 💧 None 💨 7 mph

Saturday, Sep 12Sat Sep 12

Overcast 81°/67° 💧 0.009 in 💨 8 mph

Sunday, Sep 13Sun Sep 13

Mostly cloudy 75°/61° 💧 0.250 in 💨 8 mph

Monday, Sep 14Mon Sep 14

Overcast 78°/62° 💧 0.613 in 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Moderate rain 87°/64° 💧 0.144 in 💨 16 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 73°/54° 💧 None 💨 11 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 69°/56° 💧 None 💨 7 mph

Friday, Sep 18Fri Sep 18

Overcast 67°/51° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Mostly cloudy 70°/55° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Sunny 72°/55° 💧 None 💨 5 mph

Monday, Sep 21Mon Sep 21

Overcast 77°/61° 💧 None 💨 9 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 74°/69° 💧 0.010 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in LaSalle

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for LaSalle

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 11:00 AM

PM2.5 Fine particles Good 6,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 6,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 76,9µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in LaSalle

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,3High 🙂Fair

Tomorrow UV 7,2High 😐Moderate

Wednesday UV 5,0Moderate 🙂Fair

Thursday UV 6,2High 🙂Fair

Friday UV 6,0High 😊Good

Saturday UV 7,0High —Unavailable

Sunday UV 8,0Very high —Unavailable

Hourly UV index today

11:00 AMUV 5,3 12:00 PMUV 6,8 1:00 PMUV 7,3 2:00 PMUV 6,8 3:00 PMUV 5,2 4:00 PMUV 3,1 5:00 PMUV 1,5 6:00 PMUV 0,5 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for LaSalle

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LASALLE, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

83/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 8:55 PM–4:54 AM

☁ Cloud cover 23% Real hourly forecast for the best viewing hour.

☾ Moonlight 14% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 35° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min55%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for LaSalle were last refreshed today at 10:17 AM. The current forecast period extends through 09/09/2026 at 8:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.