Observed 6:45 AM CDT at KARR

Big Rock, IL weather

Clear and 46°8°, 13°7° warmer than a typical Oct 24.

Mostly agree

Now 46°8°

Clear

Wind: Calm; Up to 10 mph16 km/h through 7 PM
Dew point: 43°6°; Comfortable
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality: 99Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.38 inHg1029 hPa; Rising slowly · +0.03 inHg+0.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 60°16° today by 11 AM
High 72°22° today at 3 PM
Below 60°16° tonight after 8 PM

This morningUp to 63°17° by 11 AM · Mostly cloudy
This afternoonUp to 72°22° by 3 PM · Mostly cloudy
TonightDown to 49°9° by 4 AM · Partly cloudy
Tomorrow morningUp to 65°18° by 11 AM · Cloudy
Tomorrow afternoonUp to 74°23° by 3 PM · Mostly cloudy
Tomorrow nightDown to 50°10° by 5 AM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 7a	Partly sunny	47°8° (likely 46°8° to 48°9°)	46°8°	0%	5 mph8 km/h from ESE, gusts 6 mph9 km/h	91%	55%	0
Sat 8a	Mostly cloudy	48°9° (likely 46°8° to 49°9°)	47°8°	0%	5 mph8 km/h from SE, gusts 6 mph10 km/h	89%	45%	0
Sat 9a	Cloudy	54°12° (likely 51°11° to 54°12°)	54°12°	0%	5 mph8 km/h from SSE, gusts 10 mph15 km/h	76%	68%	0
Sat 10a	Mostly cloudy	58°14° (likely 56°13° to 58°14°)	58°14°	0%	5 mph8 km/h from SSE, gusts 12 mph20 km/h	67%	71%	1
Sat 11a	Cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	0%	5 mph8 km/h from SSE, gusts 14 mph22 km/h	58%	81%	2
Sat 12p	Cloudy	66°19° (likely 63°17° to 66°19°)	66°19°	0%	10 mph16 km/h from SSE, gusts 12 mph19 km/h	51%	81%	3
Sat 1p	Cloudy	69°21° (likely 66°19° to 69°21°)	69°21°	0%	10 mph16 km/h from S, gusts 12 mph19 km/h	46%	80%	3
Sat 2p	Mostly cloudy	70°21° (likely 68°20° to 70°21°)	71°22°	5%	10 mph16 km/h from S, gusts 12 mph19 km/h	43%	50%	3
Sat 3p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	5%	10 mph16 km/h from SSE, gusts 11 mph18 km/h	41%	73%	2
Sat 4p	Mostly cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	5%	10 mph16 km/h from SSE, gusts 11 mph18 km/h	40%	54%	1
Sat 5p	Mostly cloudy	70°21° (likely 66°19° to 70°21°)	70°21°	5%	5 mph8 km/h from SSE, gusts 10 mph17 km/h	43%	65%	0
Sat 6p	Cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	5%	5 mph8 km/h from SE, gusts 9 mph14 km/h	49%	80%	0
Sat 7p	Partly cloudy	62°17° (likely 60°16° to 62°17°)	62°17°	5%	5 mph8 km/h from SE, gusts 9 mph14 km/h	57%	72%	0
Sat 8p	Partly cloudy	59°15° (likely 58°14° to 59°15°)	59°15°	5%	5 mph8 km/h from SE, gusts 9 mph15 km/h	64%	53%	0
Sat 9p	Clear	57°14° (likely 56°13° to 57°14°)	57°14°	5%	5 mph8 km/h from SSE, gusts 10 mph15 km/h	69%	11%	0
Sat 10p	Mostly clear	56°13° (likely 54°12° to 56°13°)	56°13°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	72%	19%	0
Sat 11p	Clear	54°12° (likely 53°12° to 55°13°)	55°13°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	75%	6%	0
Sun 12a	Partly cloudy	53°12° (likely 52°11° to 54°12°)	53°12°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	77%	45%	0
Sun 1a	Partly cloudy	52°11° (likely 51°11° to 53°12°)	52°11°	5%	5 mph8 km/h from S, gusts 9 mph15 km/h	79%	57%	0
Sun 2a	Partly cloudy	51°11° (likely 50°10° to 52°11°)	51°11°	5%	5 mph8 km/h from S, gusts 9 mph14 km/h	80%	79%	0
Sun 3a	Partly cloudy	50°10° (likely 49°9° to 51°11°)	49°9°	5%	5 mph8 km/h from S, gusts 8 mph12 km/h	83%	70%	0
Sun 4a	Cloudy	49°9° (likely 48°9° to 50°10°)	48°9°	5%	5 mph8 km/h from S, gusts 6 mph9 km/h	85%	85%	0
Sun 5a	Cloudy	49°9° (likely 47°8° to 50°10°)	48°9°	0%	5 mph8 km/h from SSE, gusts 5 mph9 km/h	86%	91%	0
Sun 6a	Cloudy	48°9° (likely 47°8° to 49°9°)	47°8°	0%	5 mph8 km/h from SSE, gusts 5 mph9 km/h	87%	91%	0
Sun 7a	Cloudy	48°9° (likely 47°8° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	91%	91%	0
Sun 8a	Cloudy	49°9° (likely 47°8° to 51°11°)	49°9°	0%	5 mph8 km/h from SSE, gusts 6 mph9 km/h	89%	90%	0
Sun 9a	Cloudy	55°13° (likely 52°11° to 55°13°)	55°13°	0%	5 mph8 km/h from S, gusts 6 mph9 km/h	75%	92%	1
Sun 10a	Cloudy	60°16° (likely 57°14° to 60°16°)	60°16°	0%	5 mph8 km/h from S, gusts 10 mph15 km/h	65%	74%	2
Sun 11a	Cloudy	65°18° (likely 62°17° to 65°18°)	65°18°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	56%	72%	2
Sun 12p	Partly sunny	69°21° (likely 65°18° to 69°21°)	69°21°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	49%	75%	3
Sun 1p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	44%	77%	3
Sun 2p	Cloudy	73°23° (likely 70°21° to 73°23°)	73°23°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	41%	81%	3
Sun 3p	Partly sunny	74°23° (likely 71°22° to 74°23°)	74°23°	0%	5 mph8 km/h from S, gusts 8 mph14 km/h	39%	69%	3
Sun 4p	Cloudy	74°23° (likely 70°21° to 74°23°)	74°23°	0%	5 mph8 km/h from S, gusts 7 mph12 km/h	39%	80%	2
Sun 5p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	5 mph8 km/h from S, gusts 7 mph11 km/h	42%	82%	1
Sun 6p	Cloudy	68°20° (likely 63°17° to 68°20°)	68°20°	0%	5 mph8 km/h from S, gusts 6 mph10 km/h	49%	80%	0
Sun 7p	Cloudy	64°18° (likely 61°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	56%	79%	0
Sun 8p	Cloudy	60°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	63%	80%	0
Sun 9p	Cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 6 mph9 km/h	68%	80%	0
Sun 10p	Cloudy	57°14° (likely 55°13° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	71%	80%	0
Sun 11p	Cloudy	56°13° (likely 54°12° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 5 mph9 km/h	74%	78%	0
Mon 12a	Cloudy	55°13° (likely 54°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 8 mph12 km/h	77%	84%	0
Mon 1a	Cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	78%	83%	0
Mon 2a	Mostly cloudy	53°12° (likely 52°11° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 2 mph3 km/h	81%	77%	0
Mon 3a	Mostly cloudy	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 2 mph4 km/h	83%	71%	0
Mon 4a	Mostly cloudy	51°11° (likely 50°10° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 3 mph4 km/h	85%	65%	0
Mon 5a	Mostly cloudy	50°10° (likely 49°9° to 55°13°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	88%	70%	0
Mon 6a	Mostly cloudy	49°9° (likely 48°9° to 55°13°)	49°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	91%	84%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 72°22°, low 48°9°. Typical 59°15° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 49°9°
  Dry
Official NWS forecast
Today: Partly sunny. High near 72, with temperatures falling to around 70 in the afternoon. South southeast wind 5 to 10 mph.
Tonight: Partly cloudy, with a low around 48. South southeast wind around 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–72°22°
Low, likely
46°8°–48°9°
Typical high / low
59°15° / 40°4°
Wind
10 mph16 km/h, gusts 19 mph31 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 74°23°, low 49°9°. Typical 58°14° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly cloudy, 50°10°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 74, with temperatures falling to around 72 in the afternoon. South wind 0 to 5 mph, with gusts as high as 10 mph.
Night: Mostly cloudy, with a low around 49. South southeast wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–74°23°
Low, likely
47°8°–49°9°
Typical high / low
58°14° / 40°4°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 69°21°, low 47°8°. Typical 58°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 69. Northeast wind 0 to 10 mph, with gusts as high as 20 mph.
Night: Mostly cloudy, with a low around 47.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–70°21°
Low, likely
47°8°–52°11°
Typical high / low
58°14° / 39°4°
Wind
13 mph21 km/h, gusts 19 mph31 km/h
UV peak
3
Tuesday, Oct 27. Mostly cloudy. High 68°20°, low 50°10°. Typical 58°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. 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 68.
Night: Mostly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–71°22°
Low, likely
49°9°–51°11°
Typical high / low
58°14° / 39°4°
Wind
13 mph21 km/h, gusts 27 mph43 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 74°23°, low 51°11°. Typical 57°14° / 39°4°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Partly sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 74.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 74°23°).
High, likely
70°21°–74°23°
Low, likely
51°11°–55°13°
Typical high / low
57°14° / 39°4°
Wind
13 mph20 km/h, gusts 24 mph38 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 46°8°. Typical 57°14° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Night: Partly cloudy, with a low around 46.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–74°23°
Low, likely
46°8°–59°15°
Typical high / low
57°14° / 38°3°
Wind
10 mph16 km/h, gusts 27 mph44 km/h
UV peak
3
Friday, Oct 30. Showers. High 68°20°, low 48°9°. Typical 56°13° / 38°3°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 7am. Partly sunny, with a high near 68.
Night: A chance of rain showers. Mostly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–76°24°
Low, likely
44°7°–58°14°
Typical high / low
56°13° / 38°3°
Wind
12 mph20 km/h, gusts 23 mph37 km/h
UV peak
2
Saturday, Oct 31. Cloudy. High 70°21°, low 56°13°. Typical 56°13° / 38°3°. Rain 0.09 in2.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  20% chance
2. Afternoon
  noon–6 PM
  Drizzle, 70°21°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  40% chance · 0.02 in0.5 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  50% chance · 0.04 in1 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
66°19°–78°26°
Low, likely
53°12°–58°14°
Typical high / low
56°13° / 38°3°
Wind
13 mph21 km/h, gusts 25 mph40 km/h
UV peak
3
Sunday, Nov 1. Showers. High 65°18°, low 59°15°. Typical 55°13° / 37°3°. Rain 0.66 in17 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  50% chance · 0.17 in4.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 64°18°
  40% chance · 0.25 in6.2 mm
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  40% chance · 0.2 in5 mm
4. Overnight
  midnight–6 AM
  Drizzle, 58°15°
  40% chance · 0.02 in0.5 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
64°18°–68°20°
Low, likely
56°13°–60°16°
Typical high / low
55°13° / 37°3°
Wind
25 mph41 km/h, gusts 43 mph68 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 63°17°, low 54°12°. Typical 55°13° / 37°3°. Rain 0.55 in14 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 58°15°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 60°16°
  30% chance · 0.39 in9.9 mm
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  30% chance · 0.1 in2.6 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
61°16°–66°19°
Low, likely
47°8°–60°16°
Typical high / low
55°13° / 37°3°
Wind
21 mph33 km/h, gusts 39 mph63 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 48°.
Tomorrow
Dry, high 74°, low 49°.
Monday
Dry, high 69°, low 47°, cooling off.
Rest of week
Highs 63–74°; chance of precipitation on Sunday, Monday.

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

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Blackberry Creek at Montgomery

7.6 mi

Below flood stage

Level: 3.8 ft
Flow: 49 cfs

Reading from Sat 5:30 AM · NWS gauge page

Blackberry Creek at Yorkville

7.9 mi

Below flood stage

Level: 3.8 ft
Flow: 57 cfs

Reading from Sat 5:30 AM · NWS gauge page

Fox River at Yorkville (Palmer Dam)

9.6 mi

Below flood stage

Level: 12.8 ft
Flow: 1,210 cfs

Reading from Sat 4:45 AM · NWS gauge page

Fox River at Montgomery

10 mi

Below flood stage

Level: 11.5 ft
Flow: 1,110 cfs

Reading from Sat 5 AM · NWS gauge page

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.

This week 14Typical 117

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 11:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

AURORA WATER · official normals 1991–2020 · records 1887–2026

Oct 24, today vs a typical year

Today’s expected high is 13°7° warmer than typical.

Last 7 days vs normal

On average 5°3° warmer than normal (daily mean temperature).

—SunOct 18
±0°MonOct 19
+2°+1°TueOct 20
+7°+4°WedOct 21
—ThuOct 22
+11°+6°FriOct 23
—SatOct 24

Big Rock weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 42 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 34 min less
Golden hour: 5:20–6:16 PM; Morning 6:59–7:55 AM
Blue hour: 6:16–6:27 PM; Morning 6:48–6:59 AM; first light 6:48 AM

Stars tonight? Fair

Mostly clear 9 PM–12 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:29 AM · rises 4:57 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Big Rock. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Big Rock, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Blackberry Creek at Montgomery

Blackberry Creek at Yorkville

Fox River at Yorkville (Palmer Dam)

Fox River at Montgomery

For your home

Heating this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon