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Naperville, Illinois weather · now

70°

Light Rain

High / Low
82° / 68°
Wind
12 mph NE
Humidity
100%
Currently precipitating; clearing around 1:00 PM (18 min).

Precipitation · next 12 hrs

Peak 69% · 2 PM

12 PM
·
·
3 PM
·
·
6 PM
·
·
9 PM
·
11 PM
ModerateAir quality PollenTreeNoneGrassModerateWeedModerate
Sun 5:57 AM 7:58 PM 14h 2m
Moon Waning Crescent 3% lit

Current weather and 7-day forecast for Naperville, Illinois, sourced directly from the National Weather Service. Expect showers and thunderstorms likely today. Today's high is 82° with a low near 68°. 1 active weather alert in effect.

What to wear today

Rain jacket and umbrella

Plan for showers (69%). Skip cotton or anything that dries slow.

Next 24 hours

65° 75° 85° ↑ 81° ↓ 69° 12 PM 3 PM 6 PM 9 PM 12 AM 3 AM 6 AM 9 AM

  1. 12 PM

    78°

    67%

  2. 2 PM

    79°

    69%

  3. 4 PM

    81°

    47%

  4. 6 PM

    80°

    32%

  5. 8 PM

    77°

    32%

  6. 10 PM

    74°

    28%

  7. 12 AM

    72°

    36%

  8. 2 AM

    71°

    38%

  9. 4 AM

    70°

    17%

  10. 6 AM

    69°

    11%

  11. 8 AM

    71°

    43%

  12. 10 AM

    76°

    58%

Live radar

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7 days

  1. Today 8/11 Showers And Thunderstorms Likely 69% 82° · 68°
    1. 12 PM 78° Showers And Thunderstorms Likely 67%
    2. 1 PM 79° Showers And Thunderstorms Likely 64%
    3. 2 PM 79° Showers And Thunderstorms Likely 69%
    4. 3 PM 79° Chance Showers And Thunderstorms 40%
    5. 4 PM 81° Chance Showers And Thunderstorms 47%
    6. 5 PM 80° Chance Showers And Thunderstorms 52%
    7. 6 PM 80° Chance Showers And Thunderstorms 32%
    8. 7 PM 79° Chance Showers And Thunderstorms 38%
    9. 8 PM 77° Chance Showers And Thunderstorms 32%
    10. 9 PM 75° Chance Showers And Thunderstorms 41%
    11. 10 PM 74° Chance Showers And Thunderstorms 28%
    12. 11 PM 72° Chance Showers And Thunderstorms 33%
  2. Wed 8/12 Showers And Thunderstorms Likely 58% 82° · 68°
    1. 12 AM 72° Chance Showers And Thunderstorms 36%
    2. 1 AM 71° Chance Showers And Thunderstorms 48%
    3. 2 AM 71° Chance Showers And Thunderstorms 38%
    4. 3 AM 70° Chance Showers And Thunderstorms 35%
    5. 4 AM 70° Slight Chance Showers And Thunderstorms 17%
    6. 5 AM 69° Mostly Cloudy 11%
    7. 6 AM 69° Mostly Cloudy 11%
    8. 7 AM 70° Chance Showers And Thunderstorms 25%
    9. 8 AM 71° Chance Showers And Thunderstorms 43%
    10. 9 AM 73° Chance Showers And Thunderstorms 30%
    11. 10 AM 76° Showers And Thunderstorms Likely 58%
    12. 11 AM 77° Chance Showers And Thunderstorms 53%
    13. 12 PM 79° Chance Showers And Thunderstorms 52%
    14. 1 PM 79° Chance Showers And Thunderstorms 43%
    15. 2 PM 80° Chance Showers And Thunderstorms 49%
    16. 3 PM 81° Showers And Thunderstorms Likely 57%
    17. 4 PM 80° Chance Showers And Thunderstorms 39%
    18. 5 PM 80° Slight Chance Showers And Thunderstorms 23%
    19. 6 PM 80° Slight Chance Showers And Thunderstorms 18%
    20. 7 PM 78° Slight Chance Showers And Thunderstorms 16%
    21. 8 PM 77° Slight Chance Showers And Thunderstorms 17%
    22. 9 PM 75° Mostly Cloudy 5%
    23. 10 PM 73° Mostly Cloudy 3%
    24. 11 PM 72° Mostly Cloudy 10%
  3. Thu 8/13 Rain Showers Likely 72% 79° · 66°
    1. 12 AM 71° Chance Showers And Thunderstorms 27%
    2. 1 AM 71° Chance Rain Showers 26%
    3. 2 AM 70° Chance Rain Showers 36%
    4. 3 AM 69° Rain Showers Likely 57%
    5. 4 AM 69° Chance Rain Showers 50%
    6. 5 AM 68° Slight Chance Rain Showers 18%
    7. 6 AM 68° Chance Rain Showers 43%
    8. 7 AM 69° Rain Showers Likely 67%
    9. 8 AM 71° Rain Showers Likely 67%
    10. 9 AM 73° Rain Showers Likely 67%
    11. 10 AM 75° Rain Showers Likely 67%
    12. 11 AM 76° Rain Showers Likely 67%
    13. 12 PM 77° Rain Showers Likely 67%
    14. 1 PM 77° Showers And Thunderstorms Likely 72%
    15. 2 PM 77° Showers And Thunderstorms Likely 72%
    16. 3 PM 77° Showers And Thunderstorms Likely 72%
    17. 4 PM 77° Showers And Thunderstorms Likely 72%
    18. 5 PM 77° Showers And Thunderstorms Likely 72%
    19. 6 PM 76° Showers And Thunderstorms Likely 72%
    20. 7 PM 75° Chance Showers And Thunderstorms 46%
    21. 8 PM 74° Chance Showers And Thunderstorms 46%
    22. 9 PM 73° Chance Showers And Thunderstorms 46%
    23. 10 PM 72° Chance Rain Showers 46%
    24. 11 PM 71° Chance Rain Showers 46%
  4. Fri 8/14 Chance Rain Showers 54% 79° · 66°
    1. 12 AM 70° Chance Rain Showers 46%
    2. 1 AM 69° Chance Rain Showers 37%
    3. 2 AM 69° Chance Rain Showers 37%
    4. 3 AM 68° Chance Rain Showers 37%
    5. 4 AM 68° Chance Rain Showers 37%
    6. 5 AM 67° Chance Rain Showers 37%
    7. 6 AM 67° Chance Rain Showers 37%
    8. 7 AM 67° Slight Chance Rain Showers 21%
    9. 8 AM 69° Slight Chance Rain Showers 21%
    10. 9 AM 72° Slight Chance Rain Showers 21%
    11. 10 AM 74° Slight Chance Rain Showers 21%
    12. 11 AM 76° Slight Chance Rain Showers 21%
    13. 12 PM 77° Slight Chance Rain Showers 21%
    14. 1 PM 77° Partly Sunny 7%
    15. 2 PM 78° Partly Sunny 7%
    16. 3 PM 78° Partly Sunny 7%
    17. 4 PM 77° Partly Sunny 7%
    18. 5 PM 76° Mostly Sunny 7%
    19. 6 PM 76° Partly Cloudy 7%
    20. 7 PM 75° Slight Chance Showers And Thunderstorms 20%
    21. 8 PM 74° Slight Chance Showers And Thunderstorms 20%
    22. 9 PM 72° Slight Chance Showers And Thunderstorms 20%
    23. 10 PM 71° Slight Chance Showers And Thunderstorms 20%
    24. 11 PM 70° Slight Chance Showers And Thunderstorms 20%
  5. Sat 8/15 Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 57% 82° · 70°
    1. 12 AM 70° Slight Chance Showers And Thunderstorms 20%
    2. 1 AM 69° Chance Showers And Thunderstorms 54%
    3. 2 AM 68° Chance Showers And Thunderstorms 54%
    4. 3 AM 68° Chance Showers And Thunderstorms 54%
    5. 4 AM 68° Chance Showers And Thunderstorms 54%
    6. 5 AM 67° Chance Showers And Thunderstorms 54%
    7. 6 AM 67° Chance Showers And Thunderstorms 54%
    8. 7 AM 67° Showers And Thunderstorms Likely 57%
    9. 8 AM 69° Showers And Thunderstorms Likely 57%
    10. 9 AM 71° Showers And Thunderstorms Likely 57%
    11. 10 AM 73° Showers And Thunderstorms Likely 57%
    12. 11 AM 75° Showers And Thunderstorms Likely 57%
    13. 12 PM 76° Showers And Thunderstorms Likely 57%
    14. 1 PM 78° Slight Chance Showers And Thunderstorms 15%
    15. 2 PM 80° Slight Chance Showers And Thunderstorms 15%
    16. 3 PM 81° Slight Chance Showers And Thunderstorms 15%
    17. 4 PM 81° Slight Chance Showers And Thunderstorms 15%
    18. 5 PM 81° Slight Chance Showers And Thunderstorms 15%
    19. 6 PM 81° Slight Chance Showers And Thunderstorms 15%
    20. 7 PM 80° Chance Showers And Thunderstorms 32%
    21. 8 PM 79° Chance Showers And Thunderstorms 32%
    22. 9 PM 77° Chance Showers And Thunderstorms 32%
    23. 10 PM 76° Chance Showers And Thunderstorms 32%
    24. 11 PM 75° Chance Showers And Thunderstorms 32%
  6. Sun 8/16 Chance Showers And Thunderstorms 49% 83° · 66°
    1. 12 AM 74° Chance Showers And Thunderstorms 32%
    2. 1 AM 73° Chance Showers And Thunderstorms 49%
    3. 2 AM 73° Chance Showers And Thunderstorms 49%
    4. 3 AM 72° Chance Showers And Thunderstorms 49%
    5. 4 AM 72° Chance Showers And Thunderstorms 49%
    6. 5 AM 71° Chance Showers And Thunderstorms 49%
    7. 6 AM 70° Chance Showers And Thunderstorms 49%
    8. 7 AM 71° Slight Chance Showers And Thunderstorms 23%
    9. 8 AM 72° Slight Chance Showers And Thunderstorms 23%
    10. 9 AM 75° Slight Chance Showers And Thunderstorms 23%
    11. 10 AM 78° Slight Chance Showers And Thunderstorms 23%
    12. 11 AM 79° Slight Chance Showers And Thunderstorms 23%
    13. 12 PM 81° Slight Chance Showers And Thunderstorms 23%
    14. 1 PM 81° Chance Showers And Thunderstorms 29%
    15. 2 PM 82° Chance Showers And Thunderstorms 29%
    16. 3 PM 82° Chance Showers And Thunderstorms 29%
    17. 4 PM 81° Chance Showers And Thunderstorms 29%
    18. 5 PM 81° Chance Showers And Thunderstorms 29%
    19. 6 PM 80° Chance Showers And Thunderstorms 29%
    20. 7 PM 78° Slight Chance Rain Showers 18%
    21. 8 PM 77° Slight Chance Rain Showers 18%
    22. 9 PM 75° Slight Chance Rain Showers 18%
    23. 10 PM 73° Slight Chance Rain Showers 18%
    24. 11 PM 72° Slight Chance Rain Showers 18%
  7. Mon 8/17 Mostly Sunny 9% 79° · 62°
    1. 12 AM 71° Slight Chance Rain Showers 18%
    2. 1 AM 70° Partly Cloudy 9%
    3. 2 AM 69° Partly Cloudy 9%
    4. 3 AM 68° Partly Cloudy 9%
    5. 4 AM 67° Partly Cloudy 9%
    6. 5 AM 66° Partly Cloudy 9%
    7. 6 AM 66° Mostly Sunny 9%
    8. 7 AM 67° Mostly Sunny 5%
    9. 8 AM 69° Mostly Sunny 5%
    10. 9 AM 71° Mostly Sunny 5%
    11. 10 AM 74° Mostly Sunny 5%
    12. 11 AM 76° Mostly Sunny 5%
    13. 12 PM 77° Mostly Sunny 5%
    14. 1 PM 77° Partly Sunny 9%
    15. 2 PM 77° Mostly Sunny 9%
    16. 3 PM 77° Mostly Sunny 9%
    17. 4 PM 77° Mostly Sunny 9%
    18. 5 PM 76° Mostly Sunny 9%
    19. 6 PM 75° Partly Cloudy 9%
    20. 7 PM 74° Partly Cloudy 6%
    21. 8 PM 72° Partly Cloudy 6%
    22. 9 PM 70° Partly Cloudy 6%
    23. 10 PM 69° Partly Cloudy 6%
    24. 11 PM 67° Partly Cloudy 6%
Extended outlook days 8–16
  1. Tue 8/18 Cloudy 8% 76° · 59°
  2. Wed 8/19 Drizzle 14% 81° · 64°
  3. Thu 8/20 Cloudy 17% 80° · 64°
  4. Fri 8/21 Rain Showers 11% 91° · 70°
  5. Sat 8/22 Rain Showers 18% 74° · 61°
  6. Sun 8/23 Partly Cloudy 10% 68° · 56°
  7. Mon 8/24 Cloudy 23% 70° · 55°
  8. Tue 8/25 Cloudy 35% 70° · 51°
  9. Wed 8/26 Cloudy 16% 76° · 56°

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.

Monday, 8/17

Mostly Sunny, 79° / 62°

  1. Tomorrow82°68°
  2. Thu79°66°
  3. Fri79°66°
  4. Sat82°70°
  5. Sun83°66°
  6. Mon79°62°

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

    warm at 66°F · calm wind · no rain expected · rain should clear by 7 AM · pollen moderate today

    Excellent98 / 100
  • BikeTomorrow 6 AM

    comfortable at 69°F · calm wind · slight chance of rain (11%) · rain should clear by 6 AM · pollen moderate today

    Excellent100 / 100
  • GolfTomorrow 6 AM

    comfortable at 69°F · calm wind · slight chance of rain (11%) · rain should clear by 6 AM · pollen moderate today

    Excellent100 / 100
  • PicnicTomorrow 6 AM

    comfortable at 69°F · calm wind · slight chance of rain (11%) · rain should clear by 6 AM · pollen moderate today

    Excellent100 / 100
  • Magic ShowAnytime

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

    Corporate Magician Scott Henderson

Climate normals

What weather to expect in Naperville

Naperville in August typically averages 81° highs and 64° lows, with about 13 days of rain. The hottest stretch is July (average high 84°); the coldest is January (average low 14°). April is the wettest month on average.

MonthAvg highAvg lowRainy days
Jan28°14°12
Feb37°21°8
Mar53°33°15
Apr62°43°18
May70°50°14
Jun80°62°15
Jul84°68°17
Aug81°64°13
Sep78°59°6
Oct67°48°7
Nov50°37°13
Dec35°22°15

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

More for Naperville

Other cities in Illinois

Detailed forecast (NWS)

This Afternoon
Showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 82, with temperatures falling to around 80 in the afternoon. South southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and thunderstorms likely between 7am and 5pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 80 in the afternoon. East southeast wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Rain showers likely before 1pm, then showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 79. East wind 0 to 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.
Friday
A chance of rain showers before 1pm. Partly sunny, with a high near 79.

Forecast details

NWS gridpoint
LOT 58,66
Radar station
KLOT
Time zone
America/Chicago
Coordinates
41.751, -88.153