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Current weather in Walnut is few clouds.

Where can I find the hourly weather forecast for Walnut?

This page shows hourly weather forecast for Walnut, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Walnut updated regularly?

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

Now · 2:50 AM

Walnut Weather & Hourly Forecast

United States · Illinois · 61376

64°F

Mostly clear night

Feels like: 65°F

💧 Humidity 85% 🌡 Pressure 30.12 inHg 💨 Wind 5 mph 👁 Visibility 16.7 mi ☁ Clouds 16% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Walnut

Today

3:00 AM

Mostly clear night

64° 💧 None 💨 5 mph H 85%30.12 inHg

6:00 AM

Clear night

63° 💧 None 💨 7 mph H 87%30.12 inHg

9:00 AM

Sunny

69° 💧 None 💨 6 mph H 75%30.15 inHg

12:00 PM

Sunny

76° 💧 None 💨 8 mph H 51%30.15 inHg

3:00 PM

Partly cloudy

79° 💧 None 💨 9 mph H 50%30.09 inHg

6:00 PM

Partly cloudy

77° 💧 None 💨 7 mph H 59%30.06 inHg

9:00 PM

Mostly cloudy night

71° 💧 None 💨 7 mph H 69%30.09 inHg

Tomorrow

12:00 AM

Partly cloudy night

67° 💧 None 💨 8 mph H 75%30.09 inHg

3:00 AM

Overcast night

65° 💧 None 💨 7 mph H 81%30.09 inHg

6:00 AM

Partly cloudy night

64° 💧 None 💨 8 mph H 82%30.09 inHg

9:00 AM

Mostly sunny

70° 💧 None 💨 8 mph H 73%30.09 inHg

12:00 PM

Partly cloudy

82° 💧 None 💨 10 mph H 53%30.06 inHg

3:00 PM

Mostly sunny

86° 💧 None 💨 10 mph H 48%30.03 inHg

6:00 PM

Sunny

84° 💧 None 💨 10 mph H 55%29.97 inHg

9:00 PM

Mostly clear night

78° 💧 None 💨 9 mph H 62%30.03 inHg

Wednesday

12:00 AM

Mostly cloudy night

78° 💧 None 💨 11 mph H 56%29.97 inHg

Today

3:00 AM

Mostly clear night

64° 💧 None 💨 5 mph H 85%30.12 inHg

4:00 AM

Clear night

63° 💧 None 💨 7 mph H 88%30.12 inHg

5:00 AM

Clear night

63° 💧 None 💨 8 mph H 87%30.09 inHg

6:00 AM

Clear night

63° 💧 None 💨 7 mph H 87%30.12 inHg

7:00 AM

Sunny

63° 💧 None 💨 7 mph H 85%30.12 inHg

8:00 AM

Sunny

66° 💧 None 💨 7 mph H 81%30.15 inHg

9:00 AM

Sunny

69° 💧 None 💨 6 mph H 75%30.15 inHg

10:00 AM

Sunny

72° 💧 None 💨 7 mph H 68%30.15 inHg

11:00 AM

Sunny

75° 💧 None 💨 8 mph H 56%30.15 inHg

12:00 PM

Sunny

76° 💧 None 💨 8 mph H 51%30.15 inHg

1:00 PM

Partly cloudy

78° 💧 None 💨 8 mph H 50%30.15 inHg

2:00 PM

Mostly sunny

78° 💧 None 💨 8 mph H 50%30.12 inHg

3:00 PM

Partly cloudy

79° 💧 None 💨 9 mph H 50%30.09 inHg

4:00 PM

Partly cloudy

79° 💧 None 💨 9 mph H 51%30.09 inHg

5:00 PM

Partly cloudy

78° 💧 None 💨 8 mph H 54%30.06 inHg

6:00 PM

Partly cloudy

77° 💧 None 💨 7 mph H 59%30.06 inHg

7:00 PM

Mostly cloudy

74° 💧 None 💨 6 mph H 67%30.06 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 7 mph H 69%30.09 inHg

9:00 PM

Mostly cloudy night

71° 💧 None 💨 7 mph H 69%30.09 inHg

10:00 PM

Mostly clear night

70° 💧 None 💨 8 mph H 71%30.12 inHg

11:00 PM

Mostly cloudy night

68° 💧 None 💨 8 mph H 72%30.12 inHg

Tomorrow

12:00 AM

Partly cloudy night

67° 💧 None 💨 8 mph H 75%30.09 inHg

1:00 AM

Overcast night

66° 💧 None 💨 7 mph H 78%30.09 inHg

2:00 AM

Overcast night

66° 💧 None 💨 7 mph H 80%30.09 inHg

3:00 AM

Overcast night

65° 💧 None 💨 7 mph H 81%30.09 inHg

4:00 AM

Overcast night

65° 💧 None 💨 8 mph H 81%30.09 inHg

5:00 AM

Overcast night

65° 💧 None 💨 7 mph H 81%30.09 inHg

6:00 AM

Partly cloudy night

64° 💧 None 💨 8 mph H 82%30.09 inHg

7:00 AM

Sunny

64° 💧 None 💨 8 mph H 83%30.09 inHg

8:00 AM

Mostly cloudy

67° 💧 None 💨 8 mph H 79%30.09 inHg

9:00 AM

Mostly sunny

70° 💧 None 💨 8 mph H 73%30.09 inHg

10:00 AM

Sunny

75° 💧 None 💨 8 mph H 66%30.09 inHg

11:00 AM

Mostly sunny

78° 💧 None 💨 9 mph H 59%30.09 inHg

12:00 PM

Partly cloudy

82° 💧 None 💨 10 mph H 53%30.06 inHg

1:00 PM

Mostly cloudy

84° 💧 None 💨 10 mph H 49%30.06 inHg

2:00 PM

Sunny

85° 💧 None 💨 10 mph H 48%30.03 inHg

3:00 PM

Mostly sunny

86° 💧 None 💨 10 mph H 48%30.03 inHg

4:00 PM

Sunny

86° 💧 None 💨 10 mph H 49%30.00 inHg

5:00 PM

Mostly sunny

85° 💧 None 💨 11 mph H 51%30.00 inHg

6:00 PM

Sunny

84° 💧 None 💨 10 mph H 55%29.97 inHg

7:00 PM

Mostly sunny

81° 💧 None 💨 10 mph H 59%29.97 inHg

8:00 PM

Mostly clear night

79° 💧 None 💨 10 mph H 61%30.00 inHg

9:00 PM

Mostly clear night

78° 💧 None 💨 9 mph H 62%30.03 inHg

10:00 PM

Overcast night

77° 💧 None 💨 9 mph H 62%30.03 inHg

11:00 PM

Overcast night

77° 💧 None 💨 11 mph H 59%30.00 inHg

Wednesday

12:00 AM

Mostly cloudy night

78° 💧 None 💨 11 mph H 56%29.97 inHg

1:00 AM

Partly cloudy night

78° 💧 None 💨 12 mph H 55%29.97 inHg

2:00 AM

Mostly clear night

77° 💧 None 💨 12 mph H 54%29.94 inHg

3:00 AM

Overcast night

77° 💧 None 💨 12 mph H 54%29.94 inHg

4:00 AM

Light thunderstorms

76° 💧 0.006 in 💨 6 mph H 61%29.97 inHg

5:00 AM

Light thunderstorms

72° 💧 0.081 in 💨 5 mph H 83%30.00 inHg

6:00 AM

Light rain

71° 💧 0.018 in 💨 9 mph H 83%30.00 inHg

7:00 AM

Light rain

71° 💧 0.007 in 💨 7 mph H 86%29.97 inHg

8:00 AM

Light thunderstorms

72° 💧 0.026 in 💨 7 mph H 86%30.00 inHg

9:00 AM

Light rain

73° 💧 0.022 in 💨 6 mph H 87%30.00 inHg

10:00 AM

Light thunderstorms

75° 💧 0.025 in 💨 9 mph H 86%30.03 inHg

11:00 AM

Thunderstorms

75° 💧 0.129 in 💨 7 mph H 89%30.00 inHg

12:00 PM

Overcast

80° 💧 0.004 in 💨 11 mph H 76%30.00 inHg

1:00 PM

Overcast

80° 💧 0.000 in 💨 9 mph H 75%29.97 inHg

2:00 PM

Overcast

82° 💧 0.001 in 💨 9 mph H 73%29.97 inHg

3:00 PM

Light rain

80° 💧 0.006 in 💨 8 mph H 81%29.97 inHg

4:00 PM

Light rain

77° 💧 0.022 in 💨 8 mph H 90%29.97 inHg

5:00 PM

Mostly cloudy

77° 💧 0.003 in 💨 4 mph H 88%29.97 inHg

6:00 PM

Overcast

78° 💧 None 💨 6 mph H 85%29.97 inHg

7:00 PM

Mostly cloudy

76° 💧 None 💨 3 mph H 91%29.97 inHg

10:00 PM

Clear night

72° 💧 None 💨 5 mph H 97%29.97 inHg

Thursday

1:00 AM

Partly cloudy night

70° 💧 None 💨 6 mph H 95%29.97 inHg

4:00 AM

Partly cloudy night

65° 💧 None 💨 5 mph H 91%30.00 inHg

7:00 AM

Partly cloudy

62° 💧 None 💨 5 mph H 91%30.03 inHg

10:00 AM

Partly cloudy

70° 💧 None 💨 5 mph H 69%30.06 inHg

1:00 PM

Sunny

75° 💧 None 💨 7 mph H 50%30.03 inHg

4:00 PM

Sunny

76° 💧 None 💨 8 mph H 50%30.00 inHg

7:00 PM

Sunny

70° 💧 None 💨 3 mph H 70%29.97 inHg

10:00 PM

Clear night

65° 💧 None 💨 4 mph H 78%30.00 inHg

Friday

1:00 AM

Clear night

61° 💧 None 💨 4 mph H 83%30.00 inHg

4:00 AM

Clear night

58° 💧 None 💨 4 mph H 89%30.00 inHg

7:00 AM

Sunny

58° 💧 None 💨 5 mph H 92%30.03 inHg

10:00 AM

Sunny

70° 💧 None 💨 7 mph H 70%30.00 inHg

1:00 PM

Sunny

76° 💧 None 💨 8 mph H 53%29.97 inHg

4:00 PM

Sunny

79° 💧 None 💨 8 mph H 48%29.88 inHg

7:00 PM

Sunny

72° 💧 None 💨 5 mph H 64%29.85 inHg

10:00 PM

Clear night

68° 💧 None 💨 8 mph H 74%29.88 inHg

Saturday

1:00 AM

Clear night

66° 💧 None 💨 9 mph H 80%29.85 inHg

4:00 AM

Mostly cloudy night

67° 💧 None 💨 9 mph H 85%29.83 inHg

7:00 AM

Light rain

69° 💧 None 💨 11 mph H 86%29.83 inHg

10:00 AM

Light rain

73° 💧 None 💨 9 mph H 86%29.85 inHg

1:00 PM

Overcast

77° 💧 None 💨 8 mph H 80%29.88 inHg

4:00 PM

Overcast

79° 💧 None 💨 7 mph H 78%29.88 inHg

7:00 PM

Mostly sunny

77° 💧 None 💨 3 mph H 86%29.91 inHg

Sunday

1:00 AM

Mostly cloudy night

64° 💧 None 💨 8 mph H 78%30.06 inHg

7:00 AM

Mostly sunny

58° 💧 None 💨 7 mph H 84%30.12 inHg

1:00 PM

Overcast

76° 💧 None 💨 4 mph H 52%30.12 inHg

7:00 PM

Overcast

70° 💧 None 💨 7 mph H 71%30.09 inHg

Monday

1:00 AM

Overcast night

65° 💧 None 💨 12 mph H 86%30.09 inHg

7:00 AM

Overcast

62° 💧 None 💨 12 mph H 90%30.06 inHg

1:00 PM

Sunny

86° 💧 None 💨 14 mph H 67%29.88 inHg

7:00 PM

Sunny

85° 💧 None 💨 15 mph H 65%29.77 inHg

Tuesday

1:00 AM

Moderate rain

73° 💧 None 💨 15 mph H 94%29.85 inHg

7:00 AM

Sunny

63° 💧 None 💨 12 mph H 81%30.00 inHg

1:00 PM

Sunny

71° 💧 None 💨 12 mph H 58%30.12 inHg

7:00 PM

Sunny

66° 💧 None 💨 8 mph H 67%30.18 inHg

Wednesday

1:00 AM

Clear night

57° 💧 None 💨 7 mph H 82%30.30 inHg

7:00 AM

Sunny

52° 💧 None 💨 4 mph H 90%30.36 inHg

1:00 PM

Partly cloudy

69° 💧 None 💨 7 mph H 52%30.39 inHg

7:00 PM

Partly cloudy

64° 💧 None 💨 4 mph H 71%30.36 inHg

Thursday

1:00 AM

Overcast night

58° 💧 None 💨 4 mph H 87%30.39 inHg

7:00 AM

Mostly cloudy

55° 💧 None 💨 7 mph H 88%30.42 inHg

1:00 PM

Overcast

66° 💧 None 💨 7 mph H 57%30.39 inHg

7:00 PM

Mostly cloudy

59° 💧 None 💨 5 mph H 69%30.33 inHg

Friday

1:00 AM

Clear night

53° 💧 None 💨 5 mph H 88%30.33 inHg

7:00 AM

Sunny

49° 💧 None 💨 4 mph H 96%30.33 inHg

1:00 PM

Overcast

70° 💧 None 💨 9 mph H 50%30.24 inHg

7:00 PM

Sunny

67° 💧 None 💨 8 mph H 65%30.15 inHg

Saturday

1:00 AM

Clear night

59° 💧 None 💨 6 mph H 87%30.18 inHg

7:00 AM

Sunny

54° 💧 None 💨 4 mph H 98%30.18 inHg

1:00 PM

Sunny

72° 💧 None 💨 5 mph H 49%30.15 inHg

7:00 PM

Sunny

66° 💧 None 💨 3 mph H 67%30.09 inHg

Sunday

1:00 AM

Clear night

58° 💧 None 💨 1 mph H 79%30.09 inHg

7:00 AM

Mostly sunny

55° 💧 None 💨 4 mph H 83%30.06 inHg

1:00 PM

Overcast

78° 💧 None 💨 10 mph H 38%30.00 inHg

7:00 PM

Overcast

69° 💧 None 💨 4 mph H 61%29.94 inHg

Monday

1:00 AM

Mostly cloudy night

61° 💧 None 💨 3 mph H 79%29.94 inHg

7:00 AM

Overcast

60° 💧 None 💨 4 mph H 80%29.94 inHg

1:00 PM

Mostly sunny

76° 💧 None 💨 4 mph H 53%29.97 inHg

7:00 PM

Mostly clear night

70° 💧 None 💨 10 mph H 72%29.94 inHg

In Walnut and, more broadly, across the state of Illinois: The evening will feature a mix of sun and clouds, with temperatures remaining mild to warm, ranging from 76 to 78 degrees Fahrenheit. Winds will be light and coming from the east, with speeds up to 8 mph, occasionally gusting to 18 mph. No precipitation is expected during this time, making for a relatively calm and pleasant evening. The weather should remain stable through the next few hours, with comfortable conditions and no significant weather disturbances anticipated. Overall, it’s a good evening for outdoor activities or relaxing outside. Temperatures will gradually stay steady, and the breeze will provide a gentle refreshment as the night progresses.

15-Day Weather Outlook for Walnut

TomorrowTomorrow

Mostly cloudy 87°/63° 💧 None 💨 11 mph

Wednesday, Sep 9Wed Sep 9

Light thunderstorms 81°/71° 💧 0.215 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Overcast 77°/62° 💧 0.009 in 💨 9 mph

Friday, Sep 11Fri Sep 11

Sunny 80°/59° 💧 None 💨 11 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 85°/68° 💧 0.121 in 💨 10 mph

Sunday, Sep 13Sun Sep 13

Partly cloudy 81°/64° 💧 None 💨 8 mph

Monday, Sep 14Mon Sep 14

Light rain 84°/67° 💧 0.387 in 💨 11 mph

Tuesday, Sep 15Tue Sep 15

Overcast 84°/72° 💧 0.025 in 💨 15 mph

Wednesday, Sep 16Wed Sep 16

Overcast 72°/55° 💧 None 💨 9 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 73°/59° 💧 None 💨 9 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 75°/57° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 69°/47° 💧 0.002 in 💨 17 mph

Sunday, Sep 20Sun Sep 20

Overcast 62°/46° 💧 0.001 in 💨 10 mph

Monday, Sep 21Mon Sep 21

Sunny 64°/47° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Walnut

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Walnut

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 AM

PM2.5 Fine particles Good 5,2µg/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 5,7µg/m³

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

O₃ Ozone Fair 66,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,2µg/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 Walnut

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 7,2High 🙂Fair

Tomorrow UV 7,1High 😐Moderate

Wednesday UV 3,2Moderate 🙂Fair

Thursday UV 6,2High 🙂Fair

Friday UV 7,0High 😊Good

Saturday UV 6,0High —Unavailable

Sunday UV 6,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,5 9:00 AMUV 1,7 10:00 AMUV 3,4 11:00 AMUV 5,2 12:00 PMUV 6,6 1:00 PMUV 7,2 2:00 PMUV 6,7 3:00 PMUV 5,1 4:00 PMUV 3,2 5:00 PMUV 1,5 6:00 PMUV 0,5

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 Walnut

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WALNUT, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

97/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:59 PM–4:54 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 21% Waning Crescent · Moon about 28° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 88° high at the best hour.

✦ Estimated visible meteors 2–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min76%

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 Walnut were last refreshed today at 2:50 AM. The current forecast period extends through 09/09/2026 at 12:00 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.