Observed 7:15 AM CDT at KFEP

Shannon, IL weather

Clear and 52°11°, 12°7° warmer than a typical Oct 24.

Mostly agree

Now 52°11°

Clear

Wind: 5 mph8 km/h; From the south-southeast. 58–10 mph16 km/h through 8 PM
Dew point: 48°9°; Comfortable
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Pressure: 30.37 inHg1028 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

7°4° warmer than this time yesterday (46°8° then, 53°12° now)

Good hours for

Above 60°16° today by 10 AM
High 71°22° today at 3 PM

This morningUp to 64°18° by 11 AM · Mostly cloudy
This afternoonUp to 71°22° by 3 PM · Partly cloudy
TonightDown to 52°11° by 4 AM · Cloudy
Tomorrow morningUp to 65°18° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 74°23° by 4 PM · Mostly cloudy
Tomorrow nightDown to 51°11° 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 8a	Mostly cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	5 mph8 km/h from S, gusts 13 mph22 km/h	74%	48%	0
Sat 9a	Cloudy	56°13° (likely 56°13° to 57°14°)	56°13°	0%	10 mph16 km/h from S, gusts 15 mph25 km/h	69%	73%	1
Sat 10a	Cloudy	60°16° (likely 59°15° to 61°16°)	60°16°	0%	10 mph16 km/h from S, gusts 17 mph28 km/h	62%	81%	1
Sat 11a	Cloudy	64°18° (likely 62°17° to 65°18°)	64°18°	0%	10 mph16 km/h from S, gusts 17 mph27 km/h	54%	78%	3
Sat 12p	Mostly cloudy	67°19° (likely 65°18° to 68°20°)	67°19°	0%	10 mph16 km/h from S, gusts 17 mph27 km/h	49%	55%	3
Sat 1p	Mostly cloudy	69°21° (likely 68°20° to 70°21°)	69°21°	5%	10 mph16 km/h from S, gusts 16 mph25 km/h	45%	68%	4
Sat 2p	Sunny	70°21° (likely 69°21° to 72°22°)	70°21°	0%	10 mph16 km/h from S, gusts 16 mph25 km/h	44%	41%	4
Sat 3p	Sunny	71°22° (likely 69°21° to 72°22°)	71°22°	0%	10 mph16 km/h from S, gusts 15 mph25 km/h	42%	45%	3
Sat 4p	Sunny	71°22° (likely 69°21° to 72°22°)	71°22°	0%	10 mph16 km/h from S, gusts 16 mph26 km/h	41%	42%	2
Sat 5p	Partly sunny	70°21° (likely 67°19° to 71°22°)	70°21°	0%	10 mph16 km/h from S, gusts 17 mph28 km/h	42%	49%	1
Sat 6p	Cloudy	67°19° (likely 64°18° to 68°20°)	67°19°	0%	10 mph16 km/h from S, gusts 13 mph22 km/h	47%	77%	0
Sat 7p	Cloudy	64°18° (likely 62°17° to 65°18°)	64°18°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	50%	81%	0
Sat 8p	Partly cloudy	61°16° (likely 60°16° to 63°17°)	61°16°	0%	5 mph8 km/h from S, gusts 14 mph22 km/h	58%	87%	0
Sat 9p	Partly cloudy	60°16° (likely 59°15° to 62°17°)	60°16°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	60%	85%	0
Sat 10p	Partly cloudy	59°15° (likely 58°14° to 61°16°)	59°15°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	62%	80%	0
Sat 11p	Partly cloudy	58°14° (likely 57°14° to 60°16°)	58°14°	0%	5 mph8 km/h from S, gusts 12 mph20 km/h	64%	84%	0
Sun 12a	Cloudy	57°14° (likely 56°13° to 60°16°)	57°14°	0%	5 mph8 km/h from S, gusts 12 mph20 km/h	64%	94%	0
Sun 1a	Cloudy	55°13° (likely 55°13° to 59°15°)	55°13°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	69%	98%	0
Sun 2a	Cloudy	54°12° (likely 54°12° to 58°14°)	54°12°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	71%	95%	0
Sun 3a	Cloudy	53°12° (likely 53°12° to 57°14°)	53°12°	0%	5 mph8 km/h from S, gusts 12 mph20 km/h	74%	92%	0
Sun 4a	Cloudy	52°11° (likely 52°11° to 56°13°)	52°11°	0%	5 mph8 km/h from S, gusts 12 mph19 km/h	77%	92%	0
Sun 5a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	77%	91%	0
Sun 6a	Cloudy	51°11° (likely 51°11° to 55°13°)	51°11°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	80%	88%	0
Sun 7a	Cloudy	50°10° (likely 50°10° to 54°12°)	48°9°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	80%	90%	0
Sun 8a	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	5 mph8 km/h from S, gusts 10 mph17 km/h	77%	89%	0
Sun 9a	Partly sunny	55°13° (likely 55°13° to 59°15°)	55°13°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	77%	82%	1
Sun 10a	Cloudy	61°16° (likely 60°16° to 63°17°)	61°16°	0%	5 mph8 km/h from S, gusts 13 mph21 km/h	62%	72%	1
Sun 11a	Partly sunny	65°18° (likely 63°17° to 66°19°)	65°18°	0%	5 mph8 km/h from S, gusts 12 mph20 km/h	56%	59%	2
Sun 12p	Partly sunny	69°21° (likely 67°19° to 70°21°)	69°21°	0%	5 mph8 km/h from S, gusts 10 mph17 km/h	49%	55%	3
Sun 1p	Cloudy	71°22° (likely 69°21° to 72°22°)	71°22°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	46%	62%	3
Sun 2p	Partly sunny	72°22° (likely 71°22° to 74°23°)	72°22°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	44%	54%	3
Sun 3p	Partly sunny	73°23° (likely 72°22° to 75°24°)	73°23°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	44%	76%	3
Sun 4p	Cloudy	74°23° (likely 72°22° to 75°24°)	74°23°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	43%	85%	2
Sun 5p	Partly sunny	72°22° (likely 69°21° to 74°23°)	72°22°	0%	0 mph0 km/h, gusts 7 mph12 km/h	46%	72%	1
Sun 6p	Cloudy	69°21° (likely 64°18° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	79%	0
Sun 7p	Cloudy	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 4 mph6 km/h	56%	79%	0
Sun 8p	Cloudy	60°16° (likely 59°15° to 64°18°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	67%	81%	0
Sun 9p	Partly cloudy	58°14° (likely 58°14° to 61°16°)	58°14°	0%	0 mph0 km/h, gusts 8 mph14 km/h	72%	74%	0
Sun 10p	Cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	0 mph0 km/h, gusts 13 mph20 km/h	75%	75%	0
Sun 11p	Cloudy	56°13° (likely 56°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 12 mph20 km/h	77%	81%	0
Mon 12a	Cloudy	55°13° (likely 54°12° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 11 mph17 km/h	77%	81%	0
Mon 1a	Cloudy	54°12° (likely 53°12° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 9 mph14 km/h	80%	75%	0
Mon 2a	Cloudy	53°12° (likely 53°12° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	88%	0
Mon 3a	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 6 mph9 km/h	86%	88%	0
Mon 4a	Cloudy	52°11° (likely 51°11° to 55°13°)	52°11°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	86%	81%	0
Mon 5a	Cloudy	51°11° (likely 51°11° to 55°13°)	51°11°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	86%	78%	0
Mon 6a	Cloudy	50°10° (likely 50°10° to 54°12°)	48°9°	0%	5 mph8 km/h from NE, gusts 11 mph17 km/h	86%	88%	0
Mon 7a	Cloudy	50°10° (likely 50°10° to 54°12°)	47°8°	0%	5 mph8 km/h from NE, gusts 14 mph22 km/h	86%	85%	0

Days ahead

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

Today, Oct 24. Cloudy. High 72°22°, low 50°10°. Typical 60°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  Dry
Official NWS forecast
Today: Mostly cloudy. High near 72, with temperatures falling to around 70 in the afternoon. South wind 5 to 10 mph.
Tonight: Partly cloudy. Low around 50, with temperatures rising to around 52 overnight. South wind 5 to 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–72°22°
Low, likely
50°10°–53°12°
Typical high / low
60°16° / 36°2°
Wind
14 mph22 km/h, gusts 21 mph33 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 74°23°, low 50°10°. Typical 60°16° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  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.
Night: Mostly cloudy, with a low around 50. Southeast wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–75°24°
Low, likely
50°10°–54°12°
Typical high / low
60°16° / 35°2°
Wind
11 mph17 km/h, gusts 23 mph37 km/h
UV peak
3
Monday, Oct 26. Cloudy. High 67°19°, low 45°7°. Typical 59°15° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 67.
Night: Mostly cloudy, with a low around 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–69°21°
Low, likely
45°7°–52°11°
Typical high / low
59°15° / 35°2°
Wind
15 mph24 km/h, gusts 23 mph37 km/h
UV peak
3
Tuesday, Oct 27. Mostly cloudy. High 68°20°, low 51°11°. Typical 58°14° / 35°2°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  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, 57°14°
  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 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 68°20°).
High, likely
65°18°–69°21°
Low, likely
47°8°–51°11°
Typical high / low
58°14° / 35°2°
Wind
13 mph20 km/h, gusts 25 mph40 km/h
UV peak
3
Wednesday, Oct 28. Showers. High 72°22°, low 49°9°. Typical 58°14° / 34°1°. Rain 0.06 in1.5 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 58°14°
  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 72.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–72°22°
Low, likely
49°9°–57°14°
Typical high / low
58°14° / 34°1°
Wind
16 mph26 km/h, gusts 27 mph44 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 68°20°, low 46°8°. Typical 57°14° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 58°14°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  Dry
4. 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 68.
Night: A slight chance of rain showers after 1am. Partly cloudy, with a low around 46.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–72°22°
Low, likely
46°8°–58°14°
Typical high / low
57°14° / 34°1°
Wind
13 mph21 km/h, gusts 29 mph47 km/h
UV peak
2
Friday, Oct 30. Showers. High 67°19°, low 47°8°. Typical 57°14° / 34°1°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Mostly sunny, with a high near 67. Chance of precipitation is 30%.
Night: A chance of rain showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–76°24°
Low, likely
43°6°–58°14°
Typical high / low
57°14° / 34°1°
Wind
14 mph22 km/h, gusts 25 mph41 km/h
UV peak
1
Saturday, Oct 31. Drizzle. High 67°19°, low 56°13°. Typical 56°13° / 33°1°. Rain 0.11 in2.8 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  30% chance
2. Afternoon
  noon–6 PM
  Drizzle, 68°20°
  40% chance
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  50% chance · 0.06 in1.6 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  50% chance · 0.07 in1.9 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
61°16°–75°24°
Low, likely
51°11°–61°16°
Typical high / low
56°13° / 33°1°
Wind
13 mph21 km/h, gusts 29 mph47 km/h
Sunday, Nov 1. Drizzle. High 64°18°, low 58°14°. Typical 56°13° / 33°1°. Rain 0.72 in18 mm, 50% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  50% chance · 0.24 in6.1 mm
2. Afternoon
  noon–6 PM
  Drizzle, 62°17°
  40% chance · 0.35 in8.9 mm
3. Evening
  6 PM–midnight
  Drizzle, 61°16°
  40% chance · 0.09 in2.3 mm
4. Overnight
  midnight–6 AM
  Drizzle, 55°13°
  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 agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–64°18°
Low, likely
56°13°–60°16°
Typical high / low
56°13° / 33°1°
Wind
25 mph40 km/h, gusts 36 mph58 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 62°17°, low 52°11°. Typical 55°13° / 33°1°. Rain 0.33 in8.4 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 55°13°
  30% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 55°13°
  30% chance · 0.16 in4.1 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  30% chance · 0.08 in2 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
59°15°–66°19°
Low, likely
45°7°–60°16°
Typical high / low
55°13° / 33°1°
Wind
25 mph40 km/h, gusts 44 mph70 km/h

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 50°.
Tomorrow
Dry, high 74°, low 50°.
Monday
Dry, high 67°, low 45°, cooling off.
Rest of week
Highs 62–72°; chance of precipitation on Saturday, Sunday.

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

Pecatonica River at Freeport

12 mi

Below flood stage

Level: 5.3 ft
Flow: 994 cfs

Reading from Sat 6:30 AM · NWS gauge page

Elkhorn Creek (IL) near Penrose

17 mi

Level: 3.2 ft
Flow: 85 cfs

Reading from Sat 5:45 AM · NWS gauge page

Rock River at Byron

25 mi

Below flood stage

Level: 6.6 ft
Flow: 5,250 cfs

Reading from Sat 6:15 AM · NWS gauge page

Pecatonica River at Martintown

25 mi

Below flood stage

Level: 6.2 ft
Flow: 778 cfs

Reading from Sat 6 AM · NWS gauge page

For your home

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

Heating this week

About 91% less heating than a typical week.

This week 12Typical 129

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 48°F).

Open the windows?

Today, 10:00 AM–9:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Mount Carroll · official normals 1991–2020 · records 1897–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 3°2° warmer than normal (daily mean temperature).

−3°−2°SunOct 18
+1°±0°MonOct 19
+3°+1°TueOct 20
+4°+2°WedOct 21
+7°+4°ThuOct 22
+11°+6°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 41 min; Losing 2 min 39 s a day; shortest Dec 21, 1 h 35 min less
Golden hour: 5:24–6:20 PM; Morning 7:04–8:01 AM
Blue hour: 6:20–6:31 PM; Morning 6:53–7:04 AM; first light 6:53 AM

Stars tonight? Poor

Clouds most of the night (about 88% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:35 AM · rises 5:01 PM
Full moon: Oct 25
New moon: Nov 9

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

Shannon, IL weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Pecatonica River at Freeport

Elkhorn Creek (IL) near Penrose

Rock River at Byron

Pecatonica River at Martintown

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? Poor

Moon