Observed 11:40 AM CDT at KDEC

Forsyth, IL weather

Sunny and 66°19°, 12°7° warmer than a typical Oct 24.

Forecasts agree

Now 66°19°

Sunny

Wind: 6 mph9 km/h; From the south-southwest. 58–7 mph11 km/h through 12 AM
Dew point: 48°9°; Comfortable
UV index: 4Moderate; Moderate until 3 PM
Air quality: 54Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.41 inHg1030 hPa; Falling slowly · −0.03 inHg−0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° cooler than this time yesterday (67°19° then, 64°18° now)

Good hours for

High 74°23° today at 3 PM
Below 60°16° tonight after 8 PM
Low 46°8° tomorrow at 7 AM
Above 60°16° tomorrow by 10 AM

This afternoonUp to 74°23° by 3 PM · Partly cloudy
TonightDown to 48°9° by 4 AM · Partly cloudy
Tomorrow morningUp to 67°19° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 76°24° by 4 PM · Mostly cloudy
Tomorrow nightDown to 51°11° by 5 AM · Mostly cloudy
Monday morningUp to 69°21° by 11 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 12p	Partly sunny	68°20° (likely 66°19° to 68°20°)	68°20°	0%	7 mph11 km/h from SSE, gusts 9 mph15 km/h	49%	74%	4
Sat 1p	Cloudy	71°22° (likely 69°21° to 71°22°)	71°22°	0%	7 mph11 km/h from SSE, gusts 9 mph14 km/h	42%	80%	4
Sat 2p	Cloudy	72°22° (likely 70°21° to 72°22°)	72°22°	0%	7 mph11 km/h from SSE, gusts 8 mph13 km/h	40%	76%	3
Sat 3p	Mostly sunny	74°23° (likely 71°22° to 74°23°)	74°23°	0%	7 mph11 km/h from SE, gusts 8 mph13 km/h	35%	38%	2
Sat 4p	Partly sunny	74°23° (likely 70°21° to 74°23°)	74°23°	0%	7 mph11 km/h from SE, gusts 9 mph14 km/h	35%	36%	1
Sat 5p	Partly sunny	72°22° (likely 68°20° to 72°22°)	72°22°	0%	7 mph11 km/h from SE, gusts 9 mph14 km/h	38%	55%	0
Sat 6p	Partly cloudy	68°20° (likely 63°17° to 68°20°)	68°20°	0%	6 mph10 km/h from SE, gusts 8 mph12 km/h	45%	56%	0
Sat 7p	Partly cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	0%	6 mph10 km/h from SE, gusts 7 mph11 km/h	54%	55%	0
Sat 8p	Partly cloudy	59°15° (likely 58°14° to 60°16°)	59°15°	0%	6 mph10 km/h from SE, gusts 9 mph15 km/h	67%	51%	0
Sat 9p	Mostly clear	56°13° (likely 56°13° to 59°15°)	56°13°	0%	5 mph8 km/h from SE, gusts 11 mph18 km/h	72%	44%	0
Sat 10p	Clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	5 mph8 km/h from SE, gusts 11 mph18 km/h	80%	16%	0
Sat 11p	Clear	53°12° (likely 53°12° to 55°13°)	53°12°	0%	5 mph8 km/h from SE, gusts 11 mph18 km/h	80%	0%	0
Sun 12a	Clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	5 mph8 km/h from SE, gusts 10 mph16 km/h	80%	0%	0
Sun 1a	Mostly clear	51°11° (likely 51°11° to 53°12°)	50°10°	0%	5 mph8 km/h from SE, gusts 9 mph14 km/h	83%	27%	0
Sun 2a	Mostly clear	50°10° (likely 50°10° to 52°11°)	49°9°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	86%	64%	0
Sun 3a	Cloudy	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	89%	71%	0
Sun 4a	Cloudy	48°9° (likely 48°9° to 50°10°)	47°8°	0%	3 mph5 km/h from SE, gusts 8 mph12 km/h	91%	76%	0
Sun 5a	Mostly clear	48°9° (likely 47°8° to 49°9°)	47°8°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	91%	75%	0
Sun 6a	Mostly clear	47°8° (likely 46°8° to 49°9°)	46°8°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	94%	61%	0
Sun 7a	Mostly sunny	46°8° (likely 46°8° to 49°9°)	45°7°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	92%	75%	0
Sun 8a	Cloudy	48°9° (likely 47°8° to 51°11°)	47°8°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	92%	87%	0
Sun 9a	Mostly sunny	54°12° (likely 53°12° to 56°13°)	54°12°	0%	5 mph8 km/h from SSE, gusts 8 mph13 km/h	86%	36%	1
Sun 10a	Mostly sunny	62°17° (likely 60°16° to 64°18°)	62°17°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	67%	29%	2
Sun 11a	Cloudy	67°19° (likely 65°18° to 69°21°)	67°19°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	59%	75%	3
Sun 12p	Mostly sunny	71°22° (likely 69°21° to 72°22°)	71°22°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	47%	66%	3
Sun 1p	Cloudy	73°23° (likely 71°22° to 74°23°)	73°23°	0%	5 mph8 km/h from SSE, gusts 7 mph11 km/h	44%	76%	4
Sun 2p	Cloudy	75°24° (likely 73°23° to 76°24°)	75°24°	0%	5 mph8 km/h from SSE, gusts 6 mph10 km/h	40%	80%	4
Sun 3p	Cloudy	75°24° (likely 73°23° to 77°25°)	75°24°	0%	5 mph8 km/h from SSE, gusts 5 mph9 km/h	40%	80%	3
Sun 4p	Cloudy	76°24° (likely 72°22° to 76°24°)	76°24°	0%	5 mph8 km/h from SSE, gusts 5 mph8 km/h	38%	81%	2
Sun 5p	Cloudy	74°23° (likely 70°21° to 75°24°)	74°23°	0%	3 mph5 km/h from SSE, gusts 5 mph8 km/h	42%	78%	1
Sun 6p	Partly cloudy	71°22° (likely 65°18° to 71°22°)	71°22°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	45%	71%	0
Sun 7p	Mostly cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	0%	3 mph5 km/h from SE, gusts 5 mph8 km/h	53%	70%	0
Sun 8p	Cloudy	61°16° (likely 60°16° to 63°17°)	61°16°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	65%	71%	0
Sun 9p	Partly cloudy	59°15° (likely 58°14° to 61°16°)	59°15°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	67%	35%	0
Sun 10p	Partly cloudy	57°14° (likely 57°14° to 58°14°)	57°14°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	75%	23%	0
Sun 11p	Mostly cloudy	55°13° (likely 55°13° to 57°14°)	55°13°	0%	2 mph3 km/h from SSE, gusts 7 mph11 km/h	77%	64%	0
Mon 12a	Cloudy	54°12° (likely 54°12° to 55°13°)	54°12°	0%	2 mph3 km/h from SSE, gusts 7 mph12 km/h	80%	69%	0
Mon 1a	Cloudy	54°12° (likely 54°12° to 55°13°)	54°12°	0%	2 mph3 km/h from SSE, gusts 8 mph12 km/h	77%	80%	0
Mon 2a	Cloudy	53°12° (likely 53°12° to 54°12°)	53°12°	0%	1 mph2 km/h from SSE, gusts 7 mph12 km/h	80%	83%	0
Mon 3a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	1 mph2 km/h from SSE, gusts 8 mph13 km/h	80%	79%	0
Mon 4a	Cloudy	52°11° (likely 52°11° to 53°12°)	52°11°	0%	1 mph2 km/h from SSE, gusts 8 mph12 km/h	81%	80%	0
Mon 5a	Cloudy	51°11° (likely 51°11° to 53°12°)	51°11°	0%	1 mph2 km/h from SSE, gusts 6 mph10 km/h	84%	82%	0
Mon 6a	Cloudy	50°10° (likely 50°10° to 53°12°)	50°10°	0%	1 mph2 km/h from SSE, gusts 6 mph10 km/h	82%	81%	0
Mon 7a	Partly sunny	50°10° (likely 49°9° to 54°12°)	50°10°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	82%	85%	0
Mon 8a	Cloudy	51°11° (likely 51°11° to 58°14°)	51°11°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	87%	89%	0
Mon 9a	Partly sunny	56°13° (likely 55°13° to 62°17°)	56°13°	0%	1 mph2 km/h from SSE, gusts 5 mph8 km/h	79%	68%	1
Mon 10a	Mostly cloudy	64°18° (likely 63°17° to 65°18°)	64°18°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	67%	82%	2
Mon 11a	Cloudy	69°21° (likely 67°19° to 69°21°)	69°21°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	58%	88%	3

Days ahead

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

Today, Oct 24. Cloudy. High 74°23°, low 46°8°. Typical 62°17° / 43°6°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Mostly sunny, 74°23°
  Dry
2. Evening
  6 PM–midnight
  Mostly clear, 59°15°
  Dry
3. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 74. Southeast wind around 7 mph.
Tonight: Mostly clear, with a low around 46. Southeast wind around 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–74°23°
Low, likely
46°8°–47°8°
Typical high / low
62°17° / 43°6°
Wind
7 mph12 km/h, gusts 16 mph25 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 76°24°, low 50°10°. Typical 61°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 76. South southeast wind around 5 mph.
Night: Partly cloudy, with a low around 50. South southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
46°8°–50°10°
Typical high / low
61°16° / 42°6°
Wind
7 mph11 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 77°25°, low 49°9°. Typical 60°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°12°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 77. South southeast wind around 3 mph.
Night: Partly cloudy, with a low around 49. Southeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
49°9°–52°11°
Typical high / low
60°16° / 42°6°
Wind
6 mph10 km/h, gusts 12 mph20 km/h
UV peak
3
Tuesday, Oct 27. Mostly cloudy. High 74°23°, low 50°10°. Typical 60°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. 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 74. South southeast wind 3 to 7 mph.
Night: Mostly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–74°23°
Low, likely
50°10°–56°13°
Typical high / low
60°16° / 42°6°
Wind
10 mph16 km/h, gusts 21 mph34 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 77°25°, low 51°11°. Typical 60°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 77.
Night: Mostly clear, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–77°25°
Low, likely
51°11°–56°13°
Typical high / low
60°16° / 41°5°
Wind
12 mph19 km/h, gusts 21 mph33 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 76°24°, low 48°9°. Typical 59°15° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 66°19°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 76.
Night: Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
48°9°–58°14°
Typical high / low
59°15° / 41°5°
Wind
13 mph21 km/h, gusts 27 mph44 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 74°23°, low 50°10°. Typical 58°14° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 58°15°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 74.
Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
74°23°–80°27°
Low, likely
50°10°–58°14°
Typical high / low
58°14° / 41°5°
Wind
11 mph18 km/h, gusts 25 mph40 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 73°23°, low 60°16°. Typical 58°14° / 40°4°. Rain 0.11 in2.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 68°20°
  40% chance · 0.01 in0.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 64°18°
  50% chance · 0.06 in1.5 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
69°21°–79°26°
Low, likely
57°14°–62°17°
Typical high / low
58°14° / 40°4°
Wind
14 mph23 km/h, gusts 29 mph46 km/h
UV peak
2
Sunday, Nov 1. Showers. High 69°21°, low 61°16°. Typical 57°14° / 40°4°. Rain 0.5 in13 mm, 50% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 66°19°
  50% chance · 0.09 in2.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 67°19°
  50% chance · 0.16 in4.1 mm
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  40% chance · 0.15 in3.8 mm
4. Overnight
  midnight–6 AM
  Drizzle, 58°15°
  40% chance · 0.13 in3.2 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 agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
58°14°–64°18°
Typical high / low
57°14° / 40°4°
Wind
24 mph38 km/h, gusts 42 mph68 km/h
UV peak
1
Monday, Nov 2. Drizzle. High 64°18°, low 55°13°. Typical 57°14° / 40°4°. Rain 0.54 in14 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  40% chance · 0.11 in2.7 mm
2. Afternoon
  noon–6 PM
  Rain, 63°17°
  40% chance · 0.35 in8.8 mm
3. Evening
  6 PM–midnight
  Rain, 62°16°
  40% chance · 0.15 in3.8 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
60°16°–69°21°
Low, likely
48°9°–65°18°
Typical high / low
57°14° / 40°4°
Wind
21 mph33 km/h, gusts 38 mph61 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 74°, low 46°.
Tomorrow
Dry, high 76°, low 50°.
Monday
Dry, high 77°, low 49°.
Rest of week
Highs 64–77°; chance of precipitation on Sunday, Monday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (ILX) (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

Sangamon River at Decatur

6.6 mi

Level: 1.8 ft
Flow: under 1 cfs

Reading from Sat 10:45 AM · NWS gauge page

Salt Creek (IL) near Rowell

14 mi

Below flood stage

Level: 9.1 ft
Flow: 20 cfs

Reading from Sat 10:30 AM · NWS gauge page

West Okaw River near Lovington

21 mi

Level: 2.2 ft

Reading from Sat 11 AM · NWS gauge page

Sangamon River at Monticello

21 mi

Below flood stage

Level: 4.9 ft
Flow: 53 cfs

Reading from Sat 11 AM · NWS gauge page

For your home

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

Heating this week

About 85% less heating than a typical week.

This week 15Typical 99

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 2
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, 1:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

DECATUR WTP · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 12°7° warmer than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 27 min less
Golden hour: 5:25–6:20 PM; Morning 6:59–7:53 AM
Blue hour: 6:20–6:31 PM; Morning 6:48–6:59 AM; first light 6:48 AM

Stars tonight? Fair

Mostly clear 10 PM–1 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:30 AM · rises 5:01 PM
Full moon: Oct 25
New moon: Nov 9

Looking southwest from Forsyth.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.