Observed 5:35 AM CDT at KLOT
Naperville, IL weather
Clear and 48°9°, 12°7° warmer than a typical Oct 23.
Today: low 49°9° (likely 44°7° to 49°9°), high 72°22° (likely 69°21° to 72°22°).
Now 48°9°
Clear
- Wind
- Calm
- Up to 5 mph8 km/h through 6 PM
- Dew point
- 48°9°
- Comfortable
- Humidity
- 100%
- Air 48°9°, dew point 48°9° · fog or dew likely
- UV index
- 0Low
- Moderate 12–3 PM · peak 4
- Air quality
- 92Moderate
- Main pollutant: PM2.5 (fine particles)
- Pressure
- 30.31 inHg1026 hPa
- Rising slowly · +0.02 inHg+0.6 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
This morningUp to 64°18° by 11 AM · Clear
This afternoonUp to 72°22° by 3 PM · Clear
TonightDown to 50°10° by 5 AM · Partly cloudy
Tomorrow morningUp to 63°17° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 71°22° by 3 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 5 AM · Mostly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 6a | Fog | 49°9° (likely 46°8° to 49°9°) | 49°9° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 86% | 24% | 0 |
| Fri 7a | Fog | 48°9° (likely 45°7° to 48°9°) | 49°9° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 88% | 31% | 0 |
| Fri 8a | Fog | 50°10° (likely 44°7° to 50°10°) | 50°10° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 86% | 53% | 0 |
| Fri 9a | Mostly sunny | 55°13° (likely 50°10° to 55°13°) | 55°13° | 0% | 5 mph8 km/h from SE, gusts 7 mph10 km/h | 74% | 30% | 1 |
| Fri 10a | Sunny | 60°16° (likely 56°13° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from SSE, gusts 8 mph13 km/h | 67% | 6% | 1 |
| Fri 11a | Sunny | 64°18° (likely 60°16° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from S, gusts 8 mph12 km/h | 60% | 1% | 2 |
| Fri 12p | Sunny | 67°19° (likely 64°18° to 67°19°) | 67°19° | 0% | 5 mph8 km/h from SSE, gusts 8 mph12 km/h | 52% | 3% | 3 |
| Fri 1p | Sunny | 70°21° (likely 66°19° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from SSE, gusts 8 mph13 km/h | 46% | 4% | 4 |
| Fri 2p | Sunny | 71°22° (likely 68°20° to 71°22°) | 71°22° | 0% | 5 mph8 km/h from SSE, gusts 8 mph13 km/h | 43% | 3% | 3 |
| Fri 3p | Sunny | 72°22° (likely 69°21° to 72°22°) | 72°22° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 41% | 2% | 2 |
| Fri 4p | Sunny | 72°22° (likely 68°20° to 72°22°) | 72°22° | 0% | 5 mph8 km/h from SE, gusts 7 mph12 km/h | 41% | 2% | 1 |
| Fri 5p | Sunny | 70°21° (likely 66°19° to 70°21°) | 70°21° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 45% | 5% | 0 |
| Fri 6p | Mostly clear | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 5 mph8 km/h from ESE, gusts 8 mph13 km/h | 53% | 37% | 0 |
| Fri 7p | Mostly clear | 62°17° (likely 58°14° to 62°17°) | 62°17° | 0% | 5 mph8 km/h from ESE, gusts 9 mph15 km/h | 61% | 38% | 0 |
| Fri 8p | Mostly clear | 60°16° (likely 55°13° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from ESE, gusts 10 mph16 km/h | 69% | 14% | 0 |
| Fri 9p | Mostly clear | 58°14° (likely 54°12° to 58°14°) | 58°14° | 0% | 5 mph8 km/h from ESE, gusts 10 mph17 km/h | 72% | 21% | 0 |
| Fri 10p | Mostly clear | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 5 mph8 km/h from ESE, gusts 11 mph17 km/h | 75% | 21% | 0 |
| Fri 11p | Mostly clear | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 5 mph8 km/h from SE, gusts 11 mph18 km/h | 75% | 13% | 0 |
| Sat 12a | Mostly clear | 55°13° (likely 52°11° to 55°13°) | 55°13° | 0% | 5 mph8 km/h from SE, gusts 12 mph19 km/h | 75% | 20% | 0 |
| Sat 1a | Partly cloudy | 54°12° (likely 50°10° to 54°12°) | 54°12° | 0% | 5 mph8 km/h from SE, gusts 11 mph17 km/h | 77% | 42% | 0 |
| Sat 2a | Cloudy | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 5 mph8 km/h from SE, gusts 11 mph18 km/h | 80% | 69% | 0 |
| Sat 3a | Cloudy | 52°11° (likely 49°9° to 52°11°) | 52°11° | 0% | 5 mph8 km/h from SE, gusts 10 mph16 km/h | 81% | 71% | 0 |
| Sat 4a | Partly cloudy | 51°11° (likely 48°9° to 51°11°) | 50°10° | 0% | 5 mph8 km/h from SSE, gusts 9 mph14 km/h | 84% | 59% | 0 |
| Sat 5a | Partly cloudy | 50°10° (likely 47°8° to 51°11°) | 49°9° | 0% | 5 mph8 km/h from SSE, gusts 9 mph14 km/h | 86% | 74% | 0 |
| Sat 6a | Cloudy | 49°9° (likely 47°8° to 51°11°) | 48°9° | 0% | 5 mph8 km/h from SSE, gusts 8 mph14 km/h | 87% | 91% | 0 |
| Sat 7a | Cloudy | 49°9° (likely 46°8° to 51°11°) | 47°8° | 0% | 5 mph8 km/h from SSE, gusts 8 mph12 km/h | 89% | 89% | 0 |
| Sat 8a | Cloudy | 50°10° (likely 47°8° to 52°11°) | 48°9° | 0% | 5 mph8 km/h from SSE, gusts 8 mph13 km/h | 87% | 77% | 0 |
| Sat 9a | Cloudy | 55°13° (likely 52°11° to 55°13°) | 55°13° | 0% | 5 mph8 km/h from SSE, gusts 10 mph16 km/h | 80% | 77% | 1 |
| Sat 10a | Cloudy | 59°15° (likely 56°13° to 59°15°) | 59°15° | 0% | 5 mph8 km/h from SSE, gusts 13 mph21 km/h | 72% | 73% | 2 |
| Sat 11a | Cloudy | 63°17° (likely 59°15° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from S, gusts 14 mph22 km/h | 65% | 81% | 2 |
| Sat 12p | Cloudy | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 10 mph16 km/h from S, gusts 12 mph20 km/h | 58% | 81% | 3 |
| Sat 1p | Cloudy | 68°20° (likely 65°18° to 68°20°) | 68°20° | 0% | 10 mph16 km/h from S, gusts 12 mph20 km/h | 54% | 81% | 3 |
| Sat 2p | Cloudy | 70°21° (likely 66°19° to 70°21°) | 70°21° | 0% | 10 mph16 km/h from S, gusts 13 mph21 km/h | 50% | 80% | 3 |
| Sat 3p | Cloudy | 71°22° (likely 67°19° to 71°22°) | 71°22° | 0% | 10 mph16 km/h from S, gusts 13 mph20 km/h | 47% | 79% | 3 |
| Sat 4p | Cloudy | 71°22° (likely 67°19° to 71°22°) | 71°22° | 0% | 10 mph16 km/h from SSE, gusts 12 mph20 km/h | 46% | 77% | 2 |
| Sat 5p | Cloudy | 69°21° (likely 66°19° to 69°21°) | 69°21° | 0% | 5 mph8 km/h from SSE, gusts 12 mph19 km/h | 49% | 68% | 1 |
| Sat 6p | Cloudy | 66°19° (likely 62°17° to 66°19°) | 66°19° | 0% | 5 mph8 km/h from SSE, gusts 10 mph17 km/h | 55% | 76% | 0 |
| Sat 7p | Cloudy | 63°17° (likely 59°15° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from SSE, gusts 8 mph14 km/h | 61% | 64% | 0 |
| Sat 8p | Partly cloudy | 61°16° (likely 56°13° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from SSE, gusts 10 mph16 km/h | 64% | 56% | 0 |
| Sat 9p | Partly cloudy | 60°16° (likely 55°13° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from SSE, gusts 11 mph18 km/h | 67% | 71% | 0 |
| Sat 10p | Partly cloudy | 58°14° (likely 54°12° to 58°14°) | 59°15° | 0% | 5 mph8 km/h from SSE, gusts 11 mph18 km/h | 69% | 58% | 0 |
| Sat 11p | Partly cloudy | 57°14° (likely 53°12° to 57°14°) | 57°14° | 0% | 5 mph8 km/h from SSE, gusts 11 mph18 km/h | 71% | 56% | 0 |
| Sun 12a | Cloudy | 56°13° (likely 52°11° to 56°13°) | 56°13° | 0% | 5 mph8 km/h from S, gusts 11 mph17 km/h | 72% | 57% | 0 |
| Sun 1a | Cloudy | 55°13° (likely 51°11° to 55°13°) | 55°13° | 0% | 5 mph8 km/h from S, gusts 9 mph15 km/h | 73% | 74% | 0 |
| Sun 2a | Cloudy | 55°13° (likely 50°10° to 57°14°) | 55°13° | 0% | 5 mph8 km/h from S, gusts 7 mph12 km/h | 74% | 70% | 0 |
| Sun 3a | Partly cloudy | 54°12° (likely 49°9° to 56°13°) | 54°12° | 0% | 5 mph8 km/h from S, gusts 7 mph11 km/h | 75% | 63% | 0 |
| Sun 4a | Cloudy | 53°12° (likely 48°9° to 56°13°) | 53°12° | 0% | 5 mph8 km/h from S, gusts 6 mph10 km/h | 78% | 69% | 0 |
| Sun 5a | Cloudy | 51°11° (likely 47°8° to 55°13°) | 51°11° | 0% | 5 mph8 km/h from S, gusts 6 mph9 km/h | 80% | 68% | 0 |
Days ahead
Today, Oct 23. Fog. High 72°22°, low 49°9°. Typical 60°16° / 41°5°. Dry. Forecasts agree.
Morning
6 AM–noon
Mostly sunny, 50°10°Dry
Afternoon
noon–6 PM
Sunny, 72°22°Dry
Evening
6 PM–midnight
Mostly clear, 60°16°Dry
Overnight
midnight–6 AM
Cloudy, 50°10°Dry
Official NWS forecast
Today: Patchy fog before 8am. Sunny. High near 72, with temperatures falling to around 70 in the afternoon. Southeast wind 0 to 5 mph.
Tonight: Mostly clear, with a low around 49. Southeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 69°21°–72°22°
- Low, likely
- 44°7°–49°9°
- Typical high / low
- 60°16° / 41°5°
- Wind
- 7 mph10 km/h, gusts 16 mph26 km/h
- UV peak
- 4
Tomorrow, Oct 24. Cloudy. High 71°22°, low 50°10°. Typical 60°16° / 40°4°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 50°10°Dry
Afternoon
noon–6 PM
Cloudy, 71°22°Dry
Evening
6 PM–midnight
Partly cloudy, 61°16°Dry
Overnight
midnight–6 AM
Partly cloudy, 51°11°Dry
Official NWS forecast
Day: Partly sunny. High near 71, with temperatures falling to around 69 in the afternoon. South southeast wind 5 to 10 mph.
Night: Partly cloudy, with a low around 50. South southeast wind around 5 mph, with gusts as high as 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 67°19°–71°22°
- Low, likely
- 46°8°–51°11°
- Typical high / low
- 60°16° / 40°4°
- Wind
- 8 mph12 km/h, gusts 17 mph27 km/h
- UV peak
- 3
Sunday, Oct 25. Cloudy. High 73°23°, low 51°11°. Typical 60°16° / 40°4°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 51°10°Dry
Afternoon
noon–6 PM
Cloudy, 71°22°Dry
Evening
6 PM–midnight
Cloudy, 61°16°Dry
Overnight
midnight–6 AM
Cloudy, 52°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 73. South southwest wind around 5 mph.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 70°21°–74°23°
- Low, likely
- 46°8°–53°12°
- Typical high / low
- 60°16° / 40°4°
- Wind
- 8 mph12 km/h, gusts 15 mph23 km/h
- UV peak
- 3
Monday, Oct 26. Cloudy. High 69°21°, low 50°10°. Typical 59°15° / 40°4°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 53°12°Dry
Afternoon
noon–6 PM
Cloudy, 68°20°Dry
Evening
6 PM–midnight
Cloudy, 56°13°Dry
Overnight
midnight–6 AM
Cloudy, 52°11°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 69.
Night: Mostly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 64°18°–72°22°
- Low, likely
- 49°9°–53°12°
- Typical high / low
- 59°15° / 40°4°
- Wind
- 10 mph15 km/h, gusts 19 mph31 km/h
- UV peak
- 4
Tuesday, Oct 27. Mostly cloudy. High 66°19°, low 49°9°. Typical 58°14° / 39°4°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 53°12°Dry
Afternoon
noon–6 PM
Cloudy, 66°19°Dry
Evening
6 PM–midnight
Cloudy, 60°16°Dry
Overnight
midnight–6 AM
Cloudy, 55°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 66.
Night: Mostly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 64°18°–68°20°
- Low, likely
- 48°9°–54°12°
- Typical high / low
- 58°14° / 39°4°
- Wind
- 8 mph12 km/h, gusts 25 mph40 km/h
- UV peak
- 3
Wednesday, Oct 28. Mostly cloudy. High 69°21°, low 50°10°. Typical 58°14° / 39°4°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 56°13°Dry
Afternoon
noon–6 PM
Sunny, 70°21°Dry
Evening
6 PM–midnight
Clear, 62°17°Dry
Overnight
midnight–6 AM
Cloudy, 56°13°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 69.
Night: Partly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 68°20°–73°23°
- Low, likely
- 50°10°–57°14°
- Typical high / low
- 58°14° / 39°4°
- Wind
- 12 mph19 km/h, gusts 26 mph42 km/h
- UV peak
- 3
Thursday, Oct 29. Showers. High 68°20°, low 47°8°. Typical 58°14° / 38°3°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 57°14°Dry
Afternoon
noon–6 PM
Sunny, 66°19°Dry
Evening
6 PM–midnight
Clear, 55°13°Dry
Overnight
midnight–6 AM
Clear, 45°7°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 7am. Mostly sunny, with a high near 68.
Night: A chance of rain showers. Mostly cloudy, with a low around 47.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 62°17°–72°22°
- Low, likely
- 45°7°–56°13°
- Typical high / low
- 58°14° / 38°3°
- Wind
- 13 mph21 km/h, gusts 32 mph52 km/h
- UV peak
- 3
Friday, Oct 30. Sunny. High 62°17°, low 45°7°. Typical 57°14° / 38°3°. Rain 0.27 in6.9 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Sunny, 47°9°Dry
Afternoon
noon–6 PM
Sunny, 57°14°Dry
Evening
6 PM–midnight
Clear, 49°10°Dry
Overnight
midnight–6 AM
Clear, 43°6°20% chance · 0.07 in1.8 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 54°12°–68°20°
- Low, likely
- 38°3°–55°13°
- Typical high / low
- 57°14° / 38°3°
- Wind
- 11 mph18 km/h, gusts 32 mph51 km/h
Saturday, Oct 31. Cloudy. High 61°16°, low 45°7°. Typical 56°13° / 38°3°. Rain 0.2 in5.1 mm, 30% chance. Forecasts differ.
Morning
6 AM–noon
Drizzle, 45°7°30% chance · 0.01 in0.4 mm
Afternoon
noon–6 PM
Drizzle, 59°15°30% chance · 0.04 in1 mm
Evening
6 PM–midnight
Drizzle, 55°13°30% chance · 0.02 in0.6 mm
Overnight
midnight–6 AM
Drizzle, 53°12°40% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 54°12°–65°18°
- Low, likely
- 34°1°–57°14°
- Typical high / low
- 56°13° / 38°3°
- Wind
- 11 mph17 km/h, gusts 28 mph45 km/h
Sunday, Nov 1. Drizzle. High 62°17°, low 51°11°. Typical 56°13° / 37°3°. Rain 0.14 in3.6 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Drizzle, 54°12°30% chance
Afternoon
noon–6 PM
Drizzle, 58°14°30% chance
Evening
6 PM–midnight
Drizzle, 53°11°20% chance · 0.01 in0.4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 58°14°–64°18°
- Low, likely
- 47°8°–54°12°
- Typical high / low
- 56°13° / 37°3°
- Wind
- 12 mph19 km/h, gusts 25 mph41 km/h
The outlook
Today
Dry, high 72°, low 49°.
Tomorrow
Dry, high 71°, low 50°.
Sunday
Dry, high 73°, low 51°.
Rest of week
Mostly dry, highs 61–69°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (LOT) (opens in a new tab)
What changed since yesterday
No meaningful changes from yesterday’s forecast.
Radar
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 88% less heating than a typical week.
Heating degree days, base 65°F
Comfort
Dry air outside (dew point 48°F).
Open the windows?
Today, 10:00 AM–8:00 PM
Good stretch to open the windows.
Is this typical?
Oct 23, today vs a typical year
Today’s expected high is 12°7° warmer than typical.
- Normal high / low
- 60°16° / 41°5°
- Forecast high / low
- 72°22° / 49°9°
- Record high
- 78°26° in 2022
- Record low
- 28°−2° in 2013
Last 7 days vs normal
On average 2°1° warmer than normal (daily mean temperature).
- −6°−4°SatOct 17
- −2°−1°SunOct 18
- +1°MonOct 19
- +5°+3°TueOct 20
- +6°+3°WedOct 21
- +9°+5°ThuOct 22
- —FriOct 23
Naperville weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:14 AM, sunset 5:59 PM.
- Daylight
- 10 h 45 min
- Losing 2 min 35 s a day; shortest Dec 21, 1 h 36 min less
- Golden hour
- 5:20–6:16 PM
- Morning 6:56–7:52 AM
- Blue hour
- 6:16–6:27 PM
- Morning 6:45–6:56 AM; first light 6:45 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Waxing gibbous
91% lit · growing
- Today
- sets 4:18 AM · rises 4:32 PM
- Full moon
- Oct 25
- New moon
- Nov 9
