Observed 3:00 PM EDT at KCHA

McDonald, TN weather

Sunny and 73°23°.

Forecasts agree

Now 73°23°

Sunny

Wind: 8 mph13 km/h; From the east. Up to 8 mph13 km/h through 3 AM
Dew point: 46°8°; Comfortable
UV index: 4Moderate; Moderate until 5 PM · peak 5
Air quality: 53Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.37 inHg1028 hPa; Falling · −0.08 inHg−2.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 72°22° today at 5 PM
Below 60°16° tonight after 9 PM
Low 46°8° tomorrow at 6 AM
Above 60°16° tomorrow by noon

This afternoonNear 71°22° · Clear
TonightDown to 47°8° by 4 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Clear
Tomorrow afternoonUp to 72°22° by 5 PM · Clear
Tomorrow nightDown to 47°8° by 4 AM · Clear
Monday morningUp to 59°15° by 11 AM · Clear
Monday afternoonUp to 69°21° by 2 PM · Partly 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 3p	Sunny	70°21° (likely 70°21° to 71°22°)	70°21°	0%	0 mph0 km/h, gusts 6 mph9 km/h	46%	2%	4
Sat 4p	Sunny	71°22° (likely 70°21° to 72°22°)	71°22°	0%	5 mph8 km/h from N, gusts 10 mph17 km/h	42%	1%	3
Sat 5p	Sunny	72°22° (likely 70°21° to 72°22°)	72°22°	0%	5 mph8 km/h from NE, gusts 10 mph16 km/h	39%	1%	1
Sat 6p	Sunny	69°21° (likely 68°20° to 69°21°)	69°21°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	45%	1%	0
Sat 7p	Clear	65°18° (likely 62°17° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 6 mph9 km/h	52%	0%	0
Sat 8p	Clear	61°16° (likely 59°15° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	60%	0%	0
Sat 9p	Clear	56°13° (likely 56°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	72%	1%	0
Sat 10p	Clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	77%	0%	0
Sat 11p	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 4 mph7 km/h	83%	28%	0
Sun 12a	Clear	51°11° (likely 49°9° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 7 mph11 km/h	86%	7%	0
Sun 1a	Mostly clear	50°10° (likely 49°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 7 mph12 km/h	86%	13%	0
Sun 2a	Clear	49°9° (likely 48°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 7 mph11 km/h	93%	43%	0
Sun 3a	Clear	48°9° (likely 47°8° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 6 mph10 km/h	93%	3%	0
Sun 4a	Clear	47°8° (likely 47°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 5 mph9 km/h	93%	4%	0
Sun 5a	Clear	47°8° (likely 46°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	2%	0
Sun 6a	Clear	46°8° (likely 45°7° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph7 km/h	93%	1%	0
Sun 7a	Clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph7 km/h	93%	0%	0
Sun 8a	Sunny	46°8° (likely 43°6° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	0%	0
Sun 9a	Sunny	48°9° (likely 45°7° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	12%	0
Sun 10a	Sunny	53°12° (likely 53°12° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	0%	1
Sun 11a	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	0 mph0 km/h, gusts 5 mph8 km/h	69%	0%	3
Sun 12p	Sunny	63°17° (likely 63°17° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 5 mph8 km/h	62%	0%	4
Sun 1p	Sunny	66°19° (likely 66°19° to 67°19°)	66°19°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	56%	0%	5
Sun 2p	Sunny	69°21° (likely 68°20° to 69°21°)	69°21°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	51%	0%	5
Sun 3p	Sunny	70°21° (likely 69°21° to 71°22°)	70°21°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	47%	0%	5
Sun 4p	Sunny	71°22° (likely 70°21° to 71°22°)	71°22°	0%	5 mph8 km/h from NE, gusts 12 mph20 km/h	46%	0%	4
Sun 5p	Sunny	72°22° (likely 70°21° to 72°22°)	72°22°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	43%	0%	2
Sun 6p	Sunny	69°21° (likely 67°19° to 69°21°)	69°21°	0%	5 mph8 km/h from N, gusts 11 mph17 km/h	49%	0%	1
Sun 7p	Clear	65°18° (likely 61°16° to 65°18°)	65°18°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	56%	0%	0
Sun 8p	Clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	65%	0%	0
Sun 9p	Clear	56°13° (likely 55°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 6 mph9 km/h	77%	0%	0
Sun 10p	Clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	83%	0%	0
Sun 11p	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	0%	0
Mon 12a	Clear	51°11° (likely 49°9° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 7 mph11 km/h	89%	1%	0
Mon 1a	Clear	50°10° (likely 48°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	2%	0
Mon 2a	Clear	49°9° (likely 47°8° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	0%	0
Mon 3a	Mostly clear	48°9° (likely 47°8° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	18%	0
Mon 4a	Clear	47°8° (likely 46°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 3 mph6 km/h	96%	40%	0
Mon 5a	Clear	47°8° (likely 45°7° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	40%	0
Mon 6a	Partly cloudy	46°8° (likely 44°7° to 50°10°)	46°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	46%	0
Mon 7a	Partly cloudy	46°8° (likely 43°6° to 50°10°)	46°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	93%	37%	0
Mon 8a	Sunny	46°8° (likely 42°6° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 2 mph3 km/h	93%	16%	0
Mon 9a	Sunny	48°9° (likely 45°7° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	20%	0
Mon 10a	Sunny	53°12° (likely 52°11° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	80%	2%	1
Mon 11a	Sunny	59°15° (likely 58°14° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 6 mph10 km/h	72%	5%	3
Mon 12p	Mostly sunny	64°18° (likely 64°18° to 65°18°)	64°18°	0%	0 mph0 km/h, gusts 7 mph11 km/h	58%	15%	4
Mon 1p	Mostly sunny	67°19° (likely 67°19° to 68°20°)	67°19°	0%	0 mph0 km/h, gusts 7 mph12 km/h	52%	24%	5
Mon 2p	Mostly sunny	69°21° (likely 69°21° to 70°21°)	69°21°	0%	5 mph8 km/h from N, gusts 9 mph15 km/h	51%	50%	5

Days ahead

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

Today, Oct 24. Sunny. High 72°22°, low 46°8°. Typical 71°22° / 48°9°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
2. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Official NWS forecast
Today: Sunny, with a high near 72. Northeast wind 0 to 5 mph.
Tonight: Mostly clear, with a low around 46. Northwest wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–72°22°
Low, likely
42°6°–47°8°
Typical high / low
71°22° / 48°9°
Wind
6 mph10 km/h, gusts 13 mph22 km/h
UV peak
5
Tomorrow, Oct 25. Mostly sunny. High 72°22°, low 46°8°. Typical 71°22° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  Dry
Official NWS forecast
Day: Sunny, with a high near 72. North wind 0 to 5 mph.
Night: Mostly clear, with a low around 46. Northeast wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–72°22°
Low, likely
43°6°–48°9°
Typical high / low
71°22° / 47°8°
Wind
8 mph12 km/h, gusts 16 mph25 km/h
UV peak
5
Monday, Oct 26. Mostly sunny. High 72°22°, low 45°7°. Typical 70°21° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 72. North wind 0 to 5 mph.
Night: Partly cloudy, with a low around 45. North wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–72°22°
Low, likely
42°6°–47°8°
Typical high / low
70°21° / 47°8°
Wind
7 mph11 km/h, gusts 16 mph26 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 75°24°, low 48°9°. Typical 70°21° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 75. North wind around 0 mph.
Night: Partly cloudy, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
73°23°–75°24°
Low, likely
42°6°–48°9°
Typical high / low
70°21° / 47°8°
Wind
5 mph8 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 74°23°, low 48°9°. Typical 69°21° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 74.
Night: Partly cloudy, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–74°23°
Low, likely
45°7°–51°11°
Typical high / low
69°21° / 46°8°
Wind
7 mph10 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 75°24°, low 49°9°. Typical 69°21° / 46°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 75.
Night: Mostly clear, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–75°24°
Low, likely
46°8°–50°10°
Typical high / low
69°21° / 46°8°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
5
Friday, Oct 30. Mostly sunny. High 77°25°, low 53°12°. Typical 68°20° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 65°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 77.
Night: Partly cloudy, with a low around 53.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
75°24°–77°25°
Low, likely
48°9°–54°12°
Typical high / low
68°20° / 45°7°
Wind
5 mph9 km/h, gusts 15 mph24 km/h
UV peak
5
Saturday, Oct 31. Cloudy. High 76°24°, low 56°13°. Typical 68°20° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 69°20°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 64°18°
  Dry
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
73°23°–79°26°
Low, likely
54°12°–59°15°
Typical high / low
68°20° / 45°7°
Wind
9 mph15 km/h, gusts 21 mph33 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 75°24°, low 62°17°. Typical 68°20° / 45°7°. Rain 0.15 in3.8 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 63°17°
  30% chance · 0.02 in0.6 mm
2. Afternoon
  noon–6 PM
  Partly sunny, 76°24°
  30% chance · 0.04 in1 mm
3. Evening
  6 PM–midnight
  Drizzle, 68°20°
  30% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Rain, 64°18°
  20% chance · 0.24 in6.1 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
73°23°–79°26°
Low, likely
53°12°–70°21°
Typical high / low
68°20° / 45°7°
Wind
12 mph20 km/h, gusts 26 mph42 km/h
UV peak
4
Monday, Nov 2. Rain. High 71°22°, low 55°13°. Typical 67°19° / 44°7°. Rain 0.62 in16 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Rain, 64°18°
  20% chance · 0.43 in11 mm
2. Afternoon
  noon–6 PM
  Mostly sunny, 67°19°
  20% chance · 0.01 in0.4 mm
3. Evening
  6 PM–midnight
  Mostly clear, 57°14°
  20% 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
63°17°–76°24°
Low, likely
47°8°–66°19°
Typical high / low
67°19° / 44°7°
Wind
16 mph26 km/h, gusts 34 mph54 km/h
UV peak
4

10 days15 days30 days

The outlook

Today
Dry, high 72°, low 46°.
Tomorrow
Dry, high 72°, low 46°.
Monday
Dry, high 72°, low 45°.
Rest of week
Mostly dry, highs 71–77°.

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

S. Chickamauga Creek near Chickamauga

14 mi

Below flood stage

Level: 3.9 ft
Flow: 77 cfs

Forecast peak 3.9 ft Sat 8 PM

Reading from Sat 1:15 PM · NWS gauge page

Tennessee River at Chattanooga

19 mi

Below flood stage

Level: 633 ft
Flow: 37,100 cfs

Forecast peak 634 ft Sat 7 PM

Reading from Sat 1 PM · NWS gauge page

Ocoee Dam #1 Tailwater at Parksville

19 mi

Below flood stage

Level: 713 ft

Forecast peak 714 ft Sat 7 PM

Reading from Sat 1 PM · NWS gauge page

Wolftever Creek near Ooltewah

5.6 mi

Below flood stage

Level: 2.5 ft
Flow: 16 cfs

Reading from Sat 1:45 PM · NWS gauge page

For your home

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

Heating this week

About 60% less heating than a typical week.

This week 19Typical 48

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 10
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 46°F).

Open the windows?

Today, 4:00 PM–8:00 PM

Good stretch to open the windows.

Is this typical?

Chattanooga Airport · official normals 1991–2020 · records 1879–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

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

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

Sun & moon

Sun

Daylight: 11 h 0 min; Losing 2 min 2 s a day; shortest Dec 21, 1 h 12 min less
Golden hour: 6:19–7:09 PM; Morning 7:38–8:28 AM
Blue hour: 7:09–7:19 PM; Morning 7:28–7:38 AM; first light 7:28 AM

Stars tonight? Fair

Clear 3–7:28 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:10 AM · rises 5:49 PM
Full moon: Oct 26
New moon: Nov 9

Looking east from McDonald. The highest point on the skyline is about 5,200 ft, 59 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

McDonald, TN weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

S. Chickamauga Creek near Chickamauga

Tennessee River at Chattanooga

Ocoee Dam #1 Tailwater at Parksville

Wolftever Creek near Ooltewah

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