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Joliet, Illinois weather · now

70°

Clear

High / Low
83° / 65°
Wind
0 mph N
Humidity
77%
No precipitation expected in the next 1.7 hours.
GoodAir quality PollenTreeNoneGrassHighWeedLow
Sun 5:28 AM 8:27 PM 14h 59m
Moon Waning Crescent 13% lit

Current weather and 7-day forecast for Joliet, Illinois, sourced directly from the National Weather Service. Expect partly sunny today. Today's high is 83° with a low near 65°.

What to wear today

T-shirt and shorts weather

83°F today — easy summer dressing.

Next 24 hours

60° 75° 90° ↑ 83° ↓ 66° 3 AM 6 AM 9 AM 12 PM 3 PM 6 PM 9 PM 12 AM

  1. 3 AM

    67°

    3%

  2. 5 AM

    66°

    3%

  3. 7 AM

    69°

    3%

  4. 9 AM

    74°

    3%

  5. 11 AM

    80°

    1%

  6. 1 PM

    83°

    0%

  7. 3 PM

    83°

    0%

  8. 5 PM

    81°

    0%

  9. 7 PM

    78°

    0%

  10. 9 PM

    73°

    0%

  11. 11 PM

    69°

    0%

  12. 1 AM

    67°

    0%

Live radar

View full radar →
Open full radar →

7 days

  1. Today 7/11 Partly Sunny 3% 83° · 65°
    1. 3 AM 67° Cloudy 3%
    2. 4 AM 66° Cloudy 3%
    3. 5 AM 66° Mostly Cloudy 3%
    4. 6 AM 67° Mostly Cloudy 2%
    5. 7 AM 69° Partly Sunny 3%
    6. 8 AM 70° Partly Sunny 3%
    7. 9 AM 74° Partly Sunny 3%
    8. 10 AM 77° Partly Sunny 2%
    9. 11 AM 80° Partly Sunny 1%
    10. 12 PM 82° Partly Sunny 1%
    11. 1 PM 83° Partly Sunny
    12. 2 PM 83° Mostly Sunny
    13. 3 PM 83° Mostly Sunny
    14. 4 PM 82° Mostly Sunny
    15. 5 PM 81° Sunny
    16. 6 PM 80° Mostly Clear
    17. 7 PM 78° Mostly Clear
    18. 8 PM 76° Mostly Clear
    19. 9 PM 73° Mostly Clear
    20. 10 PM 71° Mostly Clear
    21. 11 PM 69° Mostly Clear
  2. Sun 7/12 Sunny 0% 85° · 64°
    1. 12 AM 68° Mostly Clear
    2. 1 AM 67° Clear
    3. 2 AM 67° Clear
    4. 3 AM 66° Clear
    5. 4 AM 65° Clear
    6. 5 AM 65° Mostly Clear
    7. 6 AM 65° Sunny
    8. 7 AM 67° Sunny
    9. 8 AM 71° Sunny
    10. 9 AM 75° Sunny
    11. 10 AM 78° Sunny
    12. 11 AM 81° Sunny
    13. 12 PM 83° Sunny
    14. 1 PM 84° Sunny
    15. 2 PM 85° Sunny
    16. 3 PM 85° Sunny
    17. 4 PM 84° Sunny
    18. 5 PM 83° Sunny
    19. 6 PM 82° Clear
    20. 7 PM 80° Clear
    21. 8 PM 77° Clear
    22. 9 PM 74° Clear
    23. 10 PM 70° Clear
    24. 11 PM 68° Clear
  3. Mon 7/13 Sunny 0% 89° · 68°
    1. 12 AM 67° Clear
    2. 1 AM 66° Clear
    3. 2 AM 65° Clear
    4. 3 AM 64° Clear
    5. 4 AM 64° Clear
    6. 5 AM 64° Clear
    7. 6 AM 64° Sunny
    8. 7 AM 67° Sunny
    9. 8 AM 71° Sunny
    10. 9 AM 76° Sunny
    11. 10 AM 81° Sunny
    12. 11 AM 85° Sunny
    13. 12 PM 87° Sunny
    14. 1 PM 88° Sunny
    15. 2 PM 89° Sunny
    16. 3 PM 89° Sunny
    17. 4 PM 89° Sunny
    18. 5 PM 89° Sunny
    19. 6 PM 88° Clear
    20. 7 PM 86° Clear
    21. 8 PM 83° Clear
    22. 9 PM 79° Mostly Clear
    23. 10 PM 76° Mostly Clear
    24. 11 PM 74° Mostly Clear
  4. Tue 7/14 Sunny 1% 91° · 70°
    1. 12 AM 72° Mostly Clear
    2. 1 AM 71° Mostly Clear
    3. 2 AM 70° Mostly Clear
    4. 3 AM 69° Mostly Clear
    5. 4 AM 69° Mostly Clear
    6. 5 AM 68° Mostly Clear
    7. 6 AM 69° Sunny
    8. 7 AM 71° Sunny
    9. 8 AM 75° Sunny
    10. 9 AM 80° Sunny
    11. 10 AM 84° Sunny
    12. 11 AM 87° Sunny
    13. 12 PM 89° Sunny
    14. 1 PM 91° Sunny 1%
    15. 2 PM 91° Sunny 1%
    16. 3 PM 91° Sunny 1%
    17. 4 PM 91° Sunny 1%
    18. 5 PM 91° Sunny 1%
    19. 6 PM 90° Mostly Clear 1%
    20. 7 PM 88° Clear
    21. 8 PM 85° Clear
    22. 9 PM 82° Clear
    23. 10 PM 79° Clear
    24. 11 PM 77° Clear
  5. Wed 7/15 Sunny 3% 92° · 70°
    1. 12 AM 75° Clear
    2. 1 AM 74° Mostly Clear
    3. 2 AM 73° Mostly Clear
    4. 3 AM 72° Mostly Clear
    5. 4 AM 72° Mostly Clear
    6. 5 AM 71° Mostly Clear
    7. 6 AM 71° Sunny
    8. 7 AM 72° Sunny
    9. 8 AM 76° Sunny
    10. 9 AM 80° Sunny
    11. 10 AM 85° Sunny
    12. 11 AM 87° Sunny
    13. 12 PM 89° Sunny
    14. 1 PM 90° Sunny 3%
    15. 2 PM 91° Sunny 3%
    16. 3 PM 92° Sunny 3%
    17. 4 PM 91° Sunny 3%
    18. 5 PM 90° Sunny 3%
    19. 6 PM 89° Mostly Clear 3%
    20. 7 PM 87° Mostly Clear 2%
    21. 8 PM 84° Mostly Clear 2%
    22. 9 PM 81° Mostly Clear 2%
    23. 10 PM 78° Mostly Clear 2%
    24. 11 PM 76° Mostly Clear 2%
  6. Thu 7/16 Sunny 13% 90° · 69°
    1. 12 AM 75° Mostly Clear 2%
    2. 1 AM 74° Mostly Clear 3%
    3. 2 AM 73° Mostly Clear 3%
    4. 3 AM 72° Mostly Clear 3%
    5. 4 AM 72° Mostly Clear 3%
    6. 5 AM 71° Mostly Clear 3%
    7. 6 AM 71° Sunny 3%
    8. 7 AM 72° Sunny 6%
    9. 8 AM 75° Sunny 6%
    10. 9 AM 79° Sunny 6%
    11. 10 AM 82° Sunny 6%
    12. 11 AM 85° Sunny 6%
    13. 12 PM 86° Sunny 6%
    14. 1 PM 88° Mostly Sunny 13%
    15. 2 PM 89° Mostly Sunny 13%
    16. 3 PM 89° Mostly Sunny 13%
    17. 4 PM 89° Mostly Sunny 13%
    18. 5 PM 88° Mostly Sunny 13%
    19. 6 PM 87° Partly Cloudy 13%
    20. 7 PM 85° Partly Cloudy 9%
    21. 8 PM 82° Partly Cloudy 9%
    22. 9 PM 79° Partly Cloudy 9%
    23. 10 PM 76° Partly Cloudy 9%
    24. 11 PM 74° Partly Cloudy 9%
  7. Fri 7/17 Mostly Sunny then Slight Chance Showers And Thunderstorms 20% 88° · —
    1. 12 AM 73° Partly Cloudy 9%
    2. 1 AM 72° Partly Cloudy 9%
    3. 2 AM 71° Partly Cloudy 9%
    4. 3 AM 70° Partly Cloudy 9%
    5. 4 AM 70° Partly Cloudy 9%
    6. 5 AM 70° Partly Cloudy 9%
    7. 6 AM 70° Mostly Sunny 9%
    8. 7 AM 71° Mostly Sunny 13%
    9. 8 AM 74° Mostly Sunny 13%
    10. 9 AM 78° Mostly Sunny 13%
    11. 10 AM 81° Mostly Sunny 13%
    12. 11 AM 84° Mostly Sunny 13%
    13. 12 PM 85° Mostly Sunny 13%
    14. 1 PM 86° Slight Chance Showers And Thunderstorms 20%
    15. 2 PM 87° Slight Chance Showers And Thunderstorms 20%
Extended outlook days 8–16
  1. Sat 7/18 Drizzle 19% 88° · 67°
  2. Sun 7/19 Cloudy 16% 79° · 65°
  3. Mon 7/20 Cloudy 15% 75° · 62°
  4. Tue 7/21 Cloudy 15% 76° · 61°
  5. Wed 7/22 Cloudy 31% 78° · 61°
  6. Thu 7/23 Cloudy 24% 80° · 60°
  7. Fri 7/24 Partly Cloudy 32% 85° · 65°
  8. Sat 7/25 Cloudy 29% 86° · 66°
  9. Sun 7/26 Cloudy 21% — · —

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best day this week

Mild temps, low rain chance, clearer skies.

Sunday, 7/12

Sunny, 85° / 64°

  1. Tomorrow85°64°
  2. Mon89°68°
  3. Tue91°70°
  4. Wed92°70°
  5. Thu90°69°
  6. Fri88°

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

  • RunTomorrow 6 AM

    comfortable at 65°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Bike6 AM

    comfortable at 67°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Golf6 AM

    comfortable at 67°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Picnic7 AM

    comfortable at 69°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Magic ShowAnytime

    Any weather is magic show weather. Indoors or out, magic doesn't care.

    Corporate Magician Scott Henderson

How well did we do?

Average miss by lead time.

Each morning we save the day's predicted high/low. As later days arrive, we grade what we said against what the station actually recorded.

Same day
±4°
6 days graded
1 day out
±5°
6 days graded
3 days out
±5°
6 days graded
7 days out
±5°
6 days graded
Day-by-day, 1 day out6 days
  1. Yesterday±7°
    High84°86°-2°
    Low63°70°-7°
  2. Thu, Jul 9±3°
    High85°87°-2°
    Low68°71°-3°
  3. Wed, Jul 8±4°
    High86°88°-2°
    Low68°64°+4°
  4. Mon, Jul 6±8°
    High80°83°-3°
    Low62°70°-8°
  5. Sun, Jul 5±4°
    High81°80°+1°
    Low65°69°-4°
  6. Sat, Jul 4±2°
    High88°86°+2°
    Low70°70°0°

Climate normals

What weather to expect in Joliet

Joliet in July typically averages 83° highs and 66° lows, with about 18 days of rain. The hottest stretch is June (average high 83°); the coldest is January (average low 15°).

MonthAvg highAvg lowRainy days
Jan29°15°11
Feb38°22°9
Mar55°34°16
Apr63°44°17
May70°50°14
Jun83°65°17
Jul83°66°18
Aug82°64°12
Sep78°59°8
Oct67°49°7
Nov50°37°11
Dec36°22°14

Normals derived from the past two years of observations via Open-Meteo's historical archive.

More for Joliet

Other cities in Illinois

Detailed forecast (NWS)

Saturday
Partly sunny. High near 83, with temperatures falling to around 81 in the afternoon. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 85. East northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 89.
Tuesday
Sunny, with a high near 91.

Forecast details

NWS gridpoint
LOT 61,56
Radar station
KLOT
Time zone
America/Chicago
Coordinates
41.525, -88.082