Observed 9:55 AM CDT at KJOT

Symerton, IL weather

Sunny and 59°15°, 14°8° warmer than a typical Oct 24.

Forecasts agree

Now 59°15°

Sunny

Wind: 5 mph8 km/h; From the south-southeast. About 5 mph8 km/h through 10 PM
Dew point: 48°9°; Comfortable
UV index: 3Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 59Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.44 inHg1031 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

2°1° cooler than this time yesterday (63°17° then, 61°16° now)

Good hours for

High 73°23° today at 3 PM
Below 60°16° tonight after 8 PM
Low 47°8° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM

This morningUp to 64°18° by 11 AM · Partly cloudy
This afternoonUp to 73°23° by 3 PM · Mostly cloudy
TonightDown to 48°9° by 5 AM · Partly cloudy
Tomorrow morningUp to 66°19° by 11 AM · Cloudy
Tomorrow afternoonUp to 75°24° by 3 PM · Mostly cloudy
Tomorrow nightDown to 50°10° by 5 AM · Mostly cloudy
Monday morningUp to 57°14° by 9 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 10a	Sunny	59°15° (likely 56°13° to 62°17°)	59°15°	0%	5 mph8 km/h from SSE, gusts 12 mph19 km/h	66%	36%	2
Sat 11a	Cloudy	64°18° (likely 60°16° to 66°19°)	64°18°	0%	5 mph8 km/h from SSE, gusts 12 mph20 km/h	58%	79%	3
Sat 12p	Cloudy	68°20° (likely 64°18° to 68°20°)	68°20°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	49%	66%	3
Sat 1p	Partly sunny	70°21° (likely 67°19° to 70°21°)	71°22°	0%	5 mph8 km/h from S, gusts 10 mph17 km/h	43%	78%	4
Sat 2p	Cloudy	72°22° (likely 68°20° to 72°22°)	72°22°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	40%	82%	3
Sat 3p	Mostly cloudy	73°23° (likely 69°21° to 73°23°)	73°23°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	39%	67%	3
Sat 4p	Sunny	73°23° (likely 68°20° to 73°23°)	73°23°	0%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	39%	45%	2
Sat 5p	Mostly cloudy	71°22° (likely 66°19° to 71°22°)	71°22°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	41%	55%	1
Sat 6p	Mostly cloudy	66°19° (likely 61°16° to 66°19°)	66°19°	0%	5 mph8 km/h from SE, gusts 9 mph14 km/h	49%	54%	0
Sat 7p	Mostly cloudy	62°17° (likely 59°15° to 62°17°)	62°17°	5%	5 mph8 km/h from SE, gusts 10 mph16 km/h	57%	50%	0
Sat 8p	Partly cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	5%	5 mph8 km/h from SSE, gusts 11 mph18 km/h	63%	25%	0
Sat 9p	Clear	57°14° (likely 55°13° to 57°14°)	57°14°	0%	5 mph8 km/h from SSE, gusts 12 mph19 km/h	67%	6%	0
Sat 10p	Clear	56°13° (likely 54°12° to 56°13°)	56°13°	0%	5 mph8 km/h from SSE, gusts 11 mph18 km/h	69%	1%	0
Sat 11p	Clear	54°12° (likely 53°12° to 54°12°)	54°12°	0%	5 mph8 km/h from SSE, gusts 11 mph18 km/h	74%	0%	0
Sun 12a	Clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	77%	4%	0
Sun 1a	Clear	52°11° (likely 50°10° to 52°11°)	52°11°	0%	5 mph8 km/h from SSE, gusts 8 mph14 km/h	77%	40%	0
Sun 2a	Mostly clear	51°11° (likely 50°10° to 51°11°)	49°9°	5%	5 mph8 km/h from SSE, gusts 10 mph15 km/h	80%	40%	0
Sun 3a	Cloudy	50°10° (likely 49°9° to 50°10°)	48°9°	5%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	82%	65%	0
Sun 4a	Partly cloudy	49°9° (likely 49°9° to 50°10°)	47°8°	5%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	83%	62%	0
Sun 5a	Partly cloudy	48°9° (likely 48°9° to 49°9°)	47°8°	5%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	85%	74%	0
Sun 6a	Partly cloudy	48°9° (likely 47°8° to 48°9°)	46°8°	5%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	87%	89%	0
Sun 7a	Cloudy	47°8° (likely 47°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 9 mph14 km/h	92%	94%	0
Sun 8a	Cloudy	49°9° (likely 48°9° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 9 mph14 km/h	89%	97%	0
Sun 9a	Cloudy	55°13° (likely 53°12° to 55°13°)	55°13°	0%	5 mph8 km/h from SSE, gusts 9 mph14 km/h	73%	92%	1
Sun 10a	Cloudy	61°16° (likely 58°14° to 61°16°)	61°16°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	62%	77%	2
Sun 11a	Cloudy	66°19° (likely 62°17° to 67°19°)	66°19°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	54%	80%	3
Sun 12p	Cloudy	70°21° (likely 66°19° to 71°22°)	70°21°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	45%	80%	3
Sun 1p	Cloudy	73°23° (likely 69°21° to 73°23°)	73°23°	0%	5 mph8 km/h from S, gusts 7 mph12 km/h	40%	79%	3
Sun 2p	Partly sunny	74°23° (likely 70°21° to 74°23°)	74°23°	0%	5 mph8 km/h from S, gusts 7 mph12 km/h	37%	68%	3
Sun 3p	Partly sunny	75°24° (likely 71°22° to 75°24°)	75°24°	0%	5 mph8 km/h from S, gusts 7 mph12 km/h	36%	55%	3
Sun 4p	Sunny	75°24° (likely 71°22° to 75°24°)	75°24°	0%	5 mph8 km/h from S, gusts 6 mph10 km/h	36%	38%	2
Sun 5p	Partly sunny	73°23° (likely 68°20° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 5 mph8 km/h	39%	73%	1
Sun 6p	Partly cloudy	69°21° (likely 63°17° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 4 mph6 km/h	45%	75%	0
Sun 7p	Cloudy	64°18° (likely 60°16° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	53%	77%	0
Sun 8p	Mostly clear	60°16° (likely 58°14° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 8 mph12 km/h	60%	63%	0
Sun 9p	Partly cloudy	59°15° (likely 56°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 8 mph12 km/h	64%	73%	0
Sun 10p	Cloudy	57°14° (likely 54°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 8 mph14 km/h	67%	74%	0
Sun 11p	Cloudy	55°13° (likely 53°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 9 mph14 km/h	70%	78%	0
Mon 12a	Cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 9 mph14 km/h	72%	74%	0
Mon 1a	Cloudy	54°12° (likely 52°11° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 9 mph14 km/h	73%	69%	0
Mon 2a	Cloudy	53°12° (likely 51°11° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 9 mph14 km/h	75%	71%	0
Mon 3a	Cloudy	52°11° (likely 51°11° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 7 mph11 km/h	77%	80%	0
Mon 4a	Cloudy	51°11° (likely 50°10° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 7 mph11 km/h	80%	78%	0
Mon 5a	Cloudy	50°10° (likely 49°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	68%	0
Mon 6a	Cloudy	49°9° (likely 48°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	86%	77%	0
Mon 7a	Cloudy	50°10° (likely 48°9° to 52°11°)	50°10°	0%	0 mph0 km/h, gusts 5 mph8 km/h	87%	71%	0
Mon 8a	Cloudy	53°12° (likely 47°8° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	81%	88%	0
Mon 9a	Cloudy	57°14° (likely 52°11° to 60°16°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	71%	88%	1

Days ahead

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

Today, Oct 24. Cloudy. High 73°23°, low 47°8°. Typical 59°15° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 64°18°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Official NWS forecast
Today: Partly sunny. High near 73, with temperatures falling to around 71 in the afternoon. South southeast wind around 5 mph, with gusts as high as 10 mph.
Tonight: Partly cloudy, with a low around 47. South southeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–73°23°
Low, likely
46°8°–48°9°
Typical high / low
59°15° / 41°5°
Wind
11 mph17 km/h, gusts 17 mph28 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 75°24°, low 49°9°. Typical 59°15° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 75, with temperatures falling to around 73 in the afternoon. South wind 0 to 5 mph.
Night: Partly cloudy, with a low around 49. South southeast wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–75°24°
Low, likely
47°8°–49°9°
Typical high / low
59°15° / 40°4°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 72°22°, low 48°9°. Typical 58°14° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 72. North northeast wind 0 to 5 mph, with gusts as high as 15 mph.
Night: Mostly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–73°23°
Low, likely
48°9°–51°11°
Typical high / low
58°14° / 40°4°
Wind
13 mph22 km/h, gusts 19 mph30 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 71°22°, low 51°11°. Typical 58°14° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  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 71.
Night: Mostly cloudy, with a low around 51.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
68°20°–73°23°
Low, likely
48°9°–52°11°
Typical high / low
58°14° / 40°4°
Wind
12 mph19 km/h, gusts 22 mph36 km/h
UV peak
3
Wednesday, Oct 28. Partly sunny. High 76°24°, low 52°11°. Typical 58°14° / 39°4°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 76.
Night: Partly cloudy, with a low around 52.
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 76°24°).
High, likely
72°22°–76°24°
Low, likely
52°11°–56°13°
Typical high / low
58°14° / 39°4°
Wind
12 mph20 km/h, gusts 22 mph35 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 72°22°, low 48°9°. Typical 57°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 72.
Night: Partly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–77°25°
Low, likely
48°9°–57°14°
Typical high / low
57°14° / 39°4°
Wind
13 mph20 km/h, gusts 26 mph41 km/h
UV peak
3
Friday, Oct 30. Showers. High 70°21°, low 49°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, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Partly 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: A slight chance of rain showers after 7am. Partly sunny, with a high near 70.
Night: A slight chance of rain showers. Mostly cloudy, with a low around 49.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–77°25°
Low, likely
46°8°–57°14°
Typical high / low
56°13° / 38°3°
Wind
13 mph22 km/h, gusts 24 mph39 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 72°22°, low 56°13°. Typical 56°13° / 38°3°. Rain 0.09 in2.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 65°19°
  40% chance
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  50% chance · 0.06 in1.6 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–78°26°
Low, likely
53°12°–60°16°
Typical high / low
56°13° / 38°3°
Wind
14 mph22 km/h, gusts 26 mph42 km/h
UV peak
3
Sunday, Nov 1. Showers. High 67°19°, low 59°15°. Typical 56°13° / 38°3°. Rain 0.53 in13 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  50% chance · 0.11 in2.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  50% chance · 0.2 in5 mm
3. Evening
  6 PM–midnight
  Showers, 63°17°
  40% chance · 0.22 in5.6 mm
4. Overnight
  midnight–6 AM
  Showers, 59°15°
  40% chance · 0.07 in1.7 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
66°19°–69°21°
Low, likely
57°14°–62°17°
Typical high / low
56°13° / 38°3°
Wind
23 mph37 km/h, gusts 40 mph64 km/h
UV peak
2
Monday, Nov 2. Showers. High 63°17°, low 54°12°. Typical 55°13° / 37°3°. Rain 0.61 in15 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  40% chance · 0.07 in1.7 mm
2. Afternoon
  noon–6 PM
  Showers, 63°17°
  40% chance · 0.44 in11 mm
3. Evening
  6 PM–midnight
  Drizzle, 59°15°
  40% chance · 0.22 in5.6 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–67°19°
Low, likely
49°9°–62°17°
Typical high / low
55°13° / 37°3°
Wind
23 mph37 km/h, gusts 40 mph65 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 73°, low 47°.
Tomorrow
Dry, high 75°, low 49°.
Monday
Dry, high 72°, low 48°, cooling off.
Rest of week
Highs 63–76°; 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

Illinois River at Morris

20 mi

Below flood stage

Level: 5.2 ft
Flow: 5,220 cfs

Forecast peak 5.1 ft Sat 1 PM

Reading from Sat 9:45 AM · NWS gauge page

Kankakee River near Wilmington

7.1 mi

Below flood stage

Level: 1.4 ft
Flow: 2,030 cfs

Reading from Sat 9:45 AM · NWS gauge page

Kankakee River near Lorenzo

12 mi

Below flood stage

Level: 505 ft

Reading from Sat 9 AM · NWS gauge page

Des Plaines River at Brandon Road Lock (tailwater)

13 mi

Below flood stage

Level: 505 ft
Flow: 9,800 cfs

Reading from Sat 9 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 87% less heating than a typical week.

This week 15Typical 114

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 1
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 48°F).

Open the windows?

Today, 11:00 AM–7:00 PM

Good stretch to open the windows.

Is this typical?

JOLIET BRANDON ROAD LOCK/DAM · official normals 1991–2020 · records 1975–2026

Oct 24, today vs a typical year

Today’s expected high is 14°8° warmer than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

−5°−3°SunOct 18
+1°±0°MonOct 19
+4°+2°TueOct 20
+5°+3°WedOct 21
—ThuOct 22
+9°+5°FriOct 23
+10°+6°SatOct 24

Symerton weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 44 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:19–6:15 PM; Morning 6:56–7:52 AM
Blue hour: 6:15–6:26 PM; Morning 6:46–6:56 AM; first light 6:46 AM

Stars tonight? Fair

Mostly clear 9 PM–1 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:27 AM · rises 4:55 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Symerton. The highest point on the skyline is about 1,700 ft, 11 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Symerton, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Illinois River at Morris

Kankakee River near Wilmington

Kankakee River near Lorenzo

Des Plaines River at Brandon Road Lock (tailwater)

For your home

Heating this week

Heat-pump hours, next 7 days

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