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Weather data for New Grand Chain is updated regularly with the latest available observations and forecasts.

Now · 5:50 AM

New Grand Chain Weather & Hourly Forecast

United States · Illinois · 62941

65°F

Mostly clear night

Feels like: 64°F

💧 Humidity 82% 🌡 Pressure 30.06 inHg 💨 Wind 7 mph 👁 Visibility 16.3 mi ☁ Clouds 16% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:42 AM 🌇 Sunset 6:54 PM

Hourly Forecast for New Grand Chain

Today

6:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 82%30.06 inHg

9:00 AM

Mostly cloudy

67° 💧 0.000 in 💨 9 mph H 72%30.09 inHg

12:00 PM

Sunny

75° 💧 0.000 in 💨 8 mph H 58%30.12 inHg

3:00 PM

Sunny

80° 💧 0.001 in 💨 9 mph H 50%30.06 inHg

6:00 PM

Mostly sunny

74° 💧 None 💨 12 mph H 58%30.06 inHg

9:00 PM

Partly cloudy night

70° 💧 None 💨 10 mph H 64%30.12 inHg

Tomorrow

12:00 AM

Clear night

67° 💧 0.000 in 💨 7 mph H 70%30.15 inHg

3:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 76%30.15 inHg

6:00 AM

Overcast night

65° 💧 None 💨 7 mph H 77%30.18 inHg

9:00 AM

Overcast

68° 💧 None 💨 8 mph H 71%30.21 inHg

12:00 PM

Overcast

72° 💧 None 💨 9 mph H 60%30.21 inHg

3:00 PM

Overcast

73° 💧 None 💨 9 mph H 55%30.18 inHg

6:00 PM

Partly cloudy

72° 💧 None 💨 11 mph H 56%30.18 inHg

9:00 PM

Clear night

68° 💧 None 💨 8 mph H 67%30.18 inHg

Thursday

12:00 AM

Mostly cloudy night

64° 💧 None 💨 6 mph H 80%30.21 inHg

3:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 84%30.21 inHg

Today

6:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 82%30.06 inHg

7:00 AM

Partly cloudy

64° 💧 None 💨 8 mph H 82%30.09 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 9 mph H 78%30.09 inHg

9:00 AM

Mostly cloudy

67° 💧 None 💨 9 mph H 72%30.09 inHg

10:00 AM

Mostly cloudy

70° 💧 None 💨 9 mph H 67%30.12 inHg

11:00 AM

Sunny

72° 💧 0.000 in 💨 8 mph H 62%30.12 inHg

12:00 PM

Sunny

75° 💧 0.000 in 💨 8 mph H 58%30.12 inHg

1:00 PM

Sunny

78° 💧 None 💨 5 mph H 54%30.09 inHg

2:00 PM

Partly cloudy

80° 💧 None 💨 7 mph H 50%30.09 inHg

3:00 PM

Sunny

80° 💧 0.001 in 💨 9 mph H 50%30.06 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 10 mph H 50%30.03 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 12 mph H 55%30.06 inHg

6:00 PM

Mostly sunny

74° 💧 None 💨 12 mph H 58%30.06 inHg

7:00 PM

Partly cloudy night

72° 💧 None 💨 11 mph H 61%30.09 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 10 mph H 63%30.09 inHg

9:00 PM

Partly cloudy night

70° 💧 None 💨 10 mph H 64%30.12 inHg

10:00 PM

Mostly clear night

69° 💧 None 💨 9 mph H 65%30.15 inHg

11:00 PM

Clear night

68° 💧 None 💨 7 mph H 67%30.15 inHg

Tomorrow

12:00 AM

Clear night

67° 💧 None 💨 7 mph H 70%30.15 inHg

1:00 AM

Clear night

66° 💧 0.000 in 💨 7 mph H 72%30.15 inHg

2:00 AM

Clear night

65° 💧 None 💨 7 mph H 74%30.15 inHg

3:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 76%30.15 inHg

4:00 AM

Mostly clear night

65° 💧 None 💨 7 mph H 77%30.15 inHg

5:00 AM

Mostly cloudy night

64° 💧 None 💨 7 mph H 78%30.15 inHg

6:00 AM

Overcast night

65° 💧 None 💨 7 mph H 77%30.18 inHg

7:00 AM

Overcast

66° 💧 None 💨 7 mph H 75%30.18 inHg

8:00 AM

Overcast

67° 💧 None 💨 8 mph H 74%30.21 inHg

9:00 AM

Overcast

68° 💧 None 💨 8 mph H 71%30.21 inHg

10:00 AM

Overcast

70° 💧 None 💨 8 mph H 66%30.21 inHg

11:00 AM

Overcast

72° 💧 None 💨 8 mph H 60%30.24 inHg

12:00 PM

Overcast

72° 💧 None 💨 9 mph H 60%30.21 inHg

1:00 PM

Overcast

72° 💧 None 💨 8 mph H 58%30.21 inHg

2:00 PM

Overcast

73° 💧 None 💨 9 mph H 56%30.18 inHg

3:00 PM

Overcast

73° 💧 None 💨 9 mph H 55%30.18 inHg

4:00 PM

Overcast

73° 💧 None 💨 9 mph H 53%30.18 inHg

5:00 PM

Mostly cloudy

73° 💧 None 💨 11 mph H 52%30.15 inHg

6:00 PM

Partly cloudy

72° 💧 None 💨 11 mph H 56%30.18 inHg

7:00 PM

Overcast night

70° 💧 None 💨 7 mph H 59%30.18 inHg

8:00 PM

Mostly clear night

69° 💧 None 💨 8 mph H 63%30.18 inHg

9:00 PM

Clear night

68° 💧 None 💨 8 mph H 67%30.18 inHg

10:00 PM

Clear night

66° 💧 None 💨 7 mph H 73%30.21 inHg

11:00 PM

Mostly clear night

65° 💧 None 💨 7 mph H 76%30.21 inHg

Thursday

12:00 AM

Mostly cloudy night

64° 💧 None 💨 6 mph H 80%30.21 inHg

1:00 AM

Mostly cloudy night

64° 💧 None 💨 6 mph H 81%30.21 inHg

2:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 83%30.21 inHg

3:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 84%30.21 inHg

4:00 AM

Mostly clear night

63° 💧 None 💨 7 mph H 83%30.18 inHg

5:00 AM

Clear night

63° 💧 None 💨 8 mph H 83%30.18 inHg

6:00 AM

Clear night

61° 💧 None 💨 8 mph H 86%30.21 inHg

7:00 AM

Mostly sunny

61° 💧 None 💨 7 mph H 88%30.21 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 7 mph H 83%30.24 inHg

9:00 AM

Partly cloudy

66° 💧 None 💨 7 mph H 75%30.24 inHg

10:00 AM

Sunny

70° 💧 None 💨 7 mph H 67%30.24 inHg

11:00 AM

Overcast

73° 💧 None 💨 7 mph H 58%30.21 inHg

12:00 PM

Overcast

74° 💧 0.001 in 💨 7 mph H 56%30.21 inHg

1:00 PM

Overcast

75° 💧 None 💨 7 mph H 55%30.18 inHg

2:00 PM

Overcast

77° 💧 None 💨 7 mph H 51%30.15 inHg

3:00 PM

Partly cloudy

78° 💧 None 💨 7 mph H 48%30.15 inHg

4:00 PM

Overcast

79° 💧 None 💨 8 mph H 45%30.12 inHg

5:00 PM

Overcast

77° 💧 None 💨 9 mph H 48%30.15 inHg

6:00 PM

Overcast

75° 💧 None 💨 10 mph H 53%30.15 inHg

7:00 PM

Partly cloudy night

73° 💧 None 💨 7 mph H 61%30.15 inHg

10:00 PM

Clear night

68° 💧 None 💨 5 mph H 77%30.18 inHg

Friday

1:00 AM

Clear night

66° 💧 None 💨 4 mph H 84%30.15 inHg

4:00 AM

Mostly clear night

66° 💧 None 💨 4 mph H 87%30.15 inHg

7:00 AM

Partly cloudy

67° 💧 None 💨 6 mph H 81%30.18 inHg

10:00 AM

Partly cloudy

73° 💧 None 💨 7 mph H 65%30.21 inHg

1:00 PM

Partly cloudy

77° 💧 None 💨 7 mph H 52%30.18 inHg

4:00 PM

Partly cloudy

79° 💧 None 💨 7 mph H 48%30.12 inHg

7:00 PM

Clear night

73° 💧 None 💨 6 mph H 58%30.12 inHg

10:00 PM

Clear night

68° 💧 None 💨 6 mph H 67%30.15 inHg

Saturday

1:00 AM

Clear night

65° 💧 None 💨 6 mph H 67%30.12 inHg

4:00 AM

Partly cloudy night

61° 💧 None 💨 5 mph H 71%30.12 inHg

7:00 AM

Overcast

59° 💧 None 💨 4 mph H 76%30.15 inHg

10:00 AM

Overcast

68° 💧 None 💨 6 mph H 56%30.18 inHg

1:00 PM

Overcast

72° 💧 None 💨 4 mph H 48%30.12 inHg

4:00 PM

Overcast

74° 💧 None 💨 2 mph H 43%30.06 inHg

7:00 PM

Overcast night

71° 💧 None 💨 3 mph H 55%30.06 inHg

10:00 PM

Overcast night

67° 💧 None 💨 3 mph H 59%30.06 inHg

Sunday

1:00 AM

Overcast night

64° 💧 None 💨 3 mph H 64%30.03 inHg

4:00 AM

Moderate rain

63° 💧 None 💨 4 mph H 72%30.03 inHg

7:00 AM

Sunny

61° 💧 None 💨 4 mph H 80%30.03 inHg

10:00 AM

Mostly sunny

70° 💧 None 💨 4 mph H 53%30.06 inHg

1:00 PM

Sunny

77° 💧 None 💨 2 mph H 37%30.00 inHg

4:00 PM

Mostly cloudy

79° 💧 None 💨 2 mph H 36%29.94 inHg

7:00 PM

Clear night

73° 💧 None 💨 4 mph H 49%29.94 inHg

Monday

1:00 AM

Clear night

65° 💧 None 💨 5 mph H 58%29.97 inHg

7:00 AM

Mostly sunny

60° 💧 None 💨 3 mph H 74%29.97 inHg

1:00 PM

Sunny

78° 💧 None 💨 2 mph H 37%29.94 inHg

7:00 PM

Clear night

73° 💧 None 💨 3 mph H 46%29.88 inHg

Tuesday

1:00 AM

Clear night

62° 💧 None 💨 5 mph H 59%29.91 inHg

7:00 AM

Sunny

57° 💧 None 💨 4 mph H 79%29.94 inHg

1:00 PM

Mostly sunny

80° 💧 None 💨 4 mph H 31%29.94 inHg

7:00 PM

Mostly clear night

74° 💧 None 💨 3 mph H 42%29.88 inHg

Wednesday

1:00 AM

Mostly clear night

65° 💧 None 💨 6 mph H 52%29.91 inHg

7:00 AM

Sunny

61° 💧 None 💨 5 mph H 67%29.94 inHg

1:00 PM

Mostly cloudy

86° 💧 None 💨 7 mph H 28%29.94 inHg

7:00 PM

Overcast night

78° 💧 None 💨 7 mph H 28%29.88 inHg

Thursday

1:00 AM

Overcast night

71° 💧 None 💨 7 mph H 44%29.97 inHg

7:00 AM

Mostly cloudy

66° 💧 None 💨 6 mph H 58%30.03 inHg

1:00 PM

Mostly cloudy

87° 💧 None 💨 8 mph H 36%30.03 inHg

7:00 PM

Overcast night

82° 💧 None 💨 8 mph H 37%29.97 inHg

Friday

1:00 AM

Overcast night

76° 💧 None 💨 6 mph H 47%30.03 inHg

7:00 AM

Overcast

73° 💧 None 💨 7 mph H 54%30.09 inHg

1:00 PM

Mostly cloudy

85° 💧 None 💨 9 mph H 45%30.06 inHg

7:00 PM

Overcast night

82° 💧 None 💨 7 mph H 45%30.00 inHg

Saturday

1:00 AM

Overcast night

79° 💧 None 💨 9 mph H 45%30.03 inHg

7:00 AM

Overcast

76° 💧 None 💨 7 mph H 52%30.03 inHg

1:00 PM

Overcast

76° 💧 None 💨 7 mph H 66%30.03 inHg

7:00 PM

Light rain

75° 💧 None 💨 3 mph H 76%29.97 inHg

Sunday

1:00 AM

Moderate rain

71° 💧 None 💨 6 mph H 96%29.97 inHg

7:00 AM

Overcast

70° 💧 None 💨 7 mph H 97%29.97 inHg

1:00 PM

Light rain

74° 💧 None 💨 8 mph H 91%29.97 inHg

7:00 PM

Light rain

75° 💧 None 💨 3 mph H 88%29.94 inHg

Monday

1:00 AM

Light rain

70° 💧 None 💨 0 mph H 100%30.00 inHg

7:00 AM

Overcast

70° 💧 None 💨 7 mph H 98%30.03 inHg

1:00 PM

Moderate rain

71° 💧 None 💨 9 mph H 80%30.06 inHg

7:00 PM

Heavy rain

67° 💧 None 💨 7 mph H 88%30.03 inHg

Tuesday

1:00 AM

Light rain

63° 💧 None 💨 7 mph H 96%30.00 inHg

7:00 AM

Moderate rain

62° 💧 None 💨 8 mph H 97%30.00 inHg

1:00 PM

Overcast

68° 💧 None 💨 8 mph H 75%30.00 inHg

7:00 PM

Clear night

66° 💧 None 💨 6 mph H 69%30.00 inHg

In New Grand Chain and, more broadly, across the state of Illinois: This morning begins with mostly cloudy skies and mild temperatures ranging from 60 to 69 degrees Fahrenheit. Winds will be coming from the northeast at around 11 mph, with gusts reaching up to 21 mph. As the day progresses into the afternoon, the cloud cover is expected to persist, but no precipitation is anticipated. Temperatures are likely to remain steady within the mild range, providing comfortable conditions for outdoor activities. Winds will continue from the northeast, maintaining a moderate breeze throughout the day. Overall, it will be a relatively calm day with partly cloudy skies and no significant weather disruptions.

15-Day Weather Outlook for New Grand Chain

TomorrowTomorrow

Mostly sunny 73°/64° 💧 None 💨 11 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 79°/61° 💧 0.003 in 💨 10 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 79°/66° 💧 None 💨 7 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 74°/59° 💧 0.008 in 💨 6 mph

Sunday, Sep 27Sun Sep 27

Moderate rain 79°/61° 💧 0.029 in 💨 4 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 78°/60° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 80°/57° 💧 None 💨 5 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 86°/61° 💧 None 💨 7 mph

Thursday, Oct 1Thu Oct 1

Overcast 87°/66° 💧 None 💨 8 mph

Friday, Oct 2Fri Oct 2

Mostly cloudy 85°/73° 💧 0.002 in 💨 9 mph

Saturday, Oct 3Sat Oct 3

Light rain 79°/75° 💧 0.053 in 💨 9 mph

Sunday, Oct 4Sun Oct 4

Moderate rain 75°/70° 💧 0.555 in 💨 8 mph

Monday, Oct 5Mon Oct 5

Heavy rain 71°/67° 💧 0.673 in 💨 9 mph

Tuesday, Oct 6Tue Oct 6

Moderate rain 68°/62° 💧 0.600 in 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in New Grand Chain

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for New Grand Chain

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 AM

PM2.5 Fine particles Good 6,0µg/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 Good 36,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,0µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in New Grand Chain

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 6,7High 😊Good

Tomorrow UV 6,2High 🙂Fair

Thursday UV 7,0High 🙂Fair

Friday UV 6,6High 🙂Fair

Saturday UV 6,0High 🙂Fair

Sunday UV 7,0High —Unavailable

Monday UV 7,0High —Unavailable

Hourly UV index today

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

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.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

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 New Grand Chain

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · NEW GRAND CHAIN, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

87/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:20 PM–5:17 AM

☁ Cloud cover 18% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 67° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min69%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 New Grand Chain were last refreshed today at 5:50 AM. The current forecast period extends through 24/09/2026 at 3:00 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.