Observed 5:55 PM EDT at KBCB

Merrimac, VA weather

Sunny and 56°13°.

Mostly agree

Now 56°13°

Sunny

Wind: 9 mph15 km/h; From the east. Up to 9 mph15 km/h through 6 AM
Dew point: 40°4°; Comfortable
UV tomorrow: 5Moderate; Moderate 11 AM–5 PM · peak 5
Air quality: 38Good; Main pollutant: Ozone
Pressure: 30.49 inHg1033 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

4°2° cooler than this time yesterday (60°16° then, 56°13° now)

Good hours for

Below 50°10° tonight after 9 PM
Low 38°3° tomorrow at 7 AM
Above 50°10° tomorrow by 11 AM
High 60°16° tomorrow at 4 PM

TonightDown to 40°4° by 5 AM · Clear
Tomorrow morningUp to 51°11° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 60°16° by 4 PM · Clear
Tomorrow nightDown to 40°4° by 5 AM · Clear
Monday morningUp to 54°12° by 11 AM · Clear
Monday afternoonUp to 66°19° by 4 PM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 6p	Sunny	55°13° (likely 54°12° to 57°14°)	55°13°	0%	6 mph10 km/h from E, gusts 11 mph17 km/h	54%	0%	1
Sat 7p	Clear	52°11° (likely 49°9° to 53°12°)	52°11°	0%	5 mph8 km/h from E, gusts 8 mph12 km/h	59%	0%	0
Sat 8p	Clear	50°10° (likely 46°8° to 50°10°)	50°10°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	67%	0%	0
Sat 9p	Clear	48°9° (likely 44°7° to 48°9°)	48°9°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	70%	0%	0
Sat 10p	Clear	46°8° (likely 43°6° to 46°8°)	47°8°	0%	1 mph2 km/h from NE, gusts 5 mph7 km/h	73%	0%	0
Sat 11p	Clear	45°7° (likely 42°6° to 45°7°)	45°7°	0%	1 mph2 km/h from NE, gusts 4 mph7 km/h	77%	0%	0
Sun 12a	Clear	44°7° (likely 41°5° to 44°7°)	44°7°	0%	2 mph3 km/h from NE, gusts 4 mph6 km/h	79%	0%	0
Sun 1a	Clear	43°6° (likely 40°4° to 43°6°)	43°6°	0%	2 mph3 km/h from NE, gusts 3 mph5 km/h	80%	0%	0
Sun 2a	Clear	42°6° (likely 39°4° to 42°6°)	42°6°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	81%	5%	0
Sun 3a	Clear	42°6° (likely 39°4° to 42°6°)	42°6°	0%	1 mph2 km/h from NE, gusts 3 mph4 km/h	81%	6%	0
Sun 4a	Clear	41°5° (likely 39°4° to 41°5°)	41°5°	0%	1 mph2 km/h from NE, gusts 3 mph4 km/h	82%	13%	0
Sun 5a	Clear	40°4° (likely 38°3° to 40°4°)	40°4°	0%	1 mph2 km/h from NE, gusts 3 mph5 km/h	83%	13%	0
Sun 6a	Partly cloudy	39°4° (likely 38°3° to 40°4°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	41%	0
Sun 7a	Partly cloudy	38°3° (likely 37°3° to 40°4°)	38°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	90%	36%	0
Sun 8a	Partly sunny	39°4° (likely 37°3° to 39°4°)	39°4°	0%	1 mph2 km/h from NE, gusts 3 mph4 km/h	96%	25%	0
Sun 9a	Sunny	42°6° (likely 42°6° to 43°6°)	43°6°	0%	2 mph3 km/h from NE, gusts 3 mph4 km/h	93%	8%	1
Sun 10a	Mostly cloudy	47°8° (likely 47°8° to 50°10°)	47°8°	0%	2 mph3 km/h from E, gusts 8 mph13 km/h	86%	26%	2
Sun 11a	Mostly sunny	51°11° (likely 51°11° to 53°12°)	50°10°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	76%	22%	3
Sun 12p	Mostly cloudy	53°12° (likely 53°12° to 57°14°)	53°12°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	69%	27%	4
Sun 1p	Mostly sunny	56°13° (likely 56°13° to 59°15°)	56°13°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	62%	25%	5
Sun 2p	Mostly sunny	58°14° (likely 58°14° to 61°16°)	58°14°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	57%	24%	5
Sun 3p	Mostly sunny	59°15° (likely 59°15° to 63°17°)	59°15°	0%	3 mph5 km/h from E, gusts 10 mph15 km/h	55%	21%	4
Sun 4p	Mostly sunny	60°16° (likely 59°15° to 63°17°)	60°16°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	53%	21%	3
Sun 5p	Mostly sunny	59°15° (likely 58°14° to 61°16°)	59°15°	0%	3 mph5 km/h from E, gusts 9 mph15 km/h	54%	20%	2
Sun 6p	Mostly sunny	56°13° (likely 55°13° to 59°15°)	56°13°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	58%	14%	1
Sun 7p	Clear	53°12° (likely 51°11° to 54°12°)	53°12°	0%	2 mph3 km/h from E, gusts 8 mph13 km/h	63%	4%	0
Sun 8p	Clear	50°10° (likely 47°8° to 50°10°)	51°11°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	78%	3%	0
Sun 9p	Clear	49°9° (likely 46°8° to 49°9°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	82%	2%	0
Sun 10p	Clear	47°8° (likely 44°7° to 47°8°)	47°8°	0%	0 mph0 km/h, gusts 2 mph3 km/h	84%	1%	0
Sun 11p	Clear	45°7° (likely 43°6° to 45°7°)	45°7°	0%	0 mph0 km/h, gusts 2 mph3 km/h	86%	0%	0
Mon 12a	Clear	44°7° (likely 41°5° to 44°7°)	44°7°	0%	0 mph0 km/h, gusts 1 mph2 km/h	87%	0%	0
Mon 1a	Clear	43°6° (likely 40°4° to 44°7°)	43°6°	0%	0 mph0 km/h, gusts 2 mph3 km/h	86%	9%	0
Mon 2a	Clear	42°6° (likely 38°3° to 43°6°)	42°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	88%	14%	0
Mon 3a	Clear	41°5° (likely 37°3° to 42°6°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	87%	14%	0
Mon 4a	Clear	41°5° (likely 37°3° to 42°6°)	41°5°	0%	1 mph2 km/h from W, gusts 3 mph4 km/h	88%	14%	0
Mon 5a	Clear	40°4° (likely 36°2° to 41°5°)	40°4°	0%	1 mph2 km/h from W, gusts 4 mph7 km/h	87%	16%	0
Mon 6a	Clear	39°4° (likely 36°2° to 40°4°)	39°4°	0%	1 mph2 km/h from W, gusts 5 mph8 km/h	90%	24%	0
Mon 7a	Partly cloudy	38°3° (likely 35°2° to 39°4°)	38°3°	0%	1 mph2 km/h from W, gusts 5 mph7 km/h	92%	31%	0
Mon 8a	Partly sunny	38°3° (likely 35°2° to 39°4°)	38°3°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	90%	36%	0
Mon 9a	Sunny	43°6° (likely 38°3° to 43°6°)	43°6°	0%	2 mph3 km/h from W, gusts 6 mph9 km/h	83%	33%	1
Mon 10a	Partly sunny	49°9° (likely 45°7° to 49°9°)	49°9°	0%	2 mph3 km/h from W, gusts 7 mph12 km/h	81%	19%	2
Mon 11a	Sunny	54°12° (likely 52°11° to 54°12°)	54°12°	0%	2 mph3 km/h from W, gusts 7 mph12 km/h	73%	1%	3
Mon 12p	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	66%	0%	4
Mon 1p	Sunny	60°16° (likely 60°16° to 63°17°)	60°16°	0%	1 mph2 km/h from W, gusts 6 mph10 km/h	56%	0%	5
Mon 2p	Sunny	63°17° (likely 63°17° to 67°19°)	63°17°	0%	1 mph2 km/h from W, gusts 6 mph10 km/h	45%	0%	5
Mon 3p	Sunny	65°18° (likely 65°18° to 70°21°)	65°18°	0%	1 mph2 km/h from W, gusts 6 mph10 km/h	41%	0%	4
Mon 4p	Sunny	66°19° (likely 66°19° to 69°21°)	66°19°	0%	1 mph2 km/h from W, gusts 7 mph11 km/h	37%	1%	3
Mon 5p	Sunny	65°18° (likely 65°18° to 67°19°)	65°18°	0%	1 mph2 km/h from W, gusts 7 mph12 km/h	36%	1%	2

Days ahead

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

Today, Oct 24. Cloudy. High 59°15°, low 37°3°. Typical 63°17° / 38°3°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 37. Northeast wind 1 to 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–60°16°
Low, likely
37°3°–43°6°
Typical high / low
63°17° / 38°3°
Wind
7 mph10 km/h, gusts 15 mph25 km/h
UV peak
5
Tomorrow, Oct 25. Partly sunny. High 61°16°, low 36°2°. Typical 63°17° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 61. Northeast wind 0 to 5 mph.
Night: Partly cloudy, with a low around 36. Northwest wind 0 to 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
36°2°–39°4°
Typical high / low
63°17° / 37°3°
Wind
8 mph13 km/h, gusts 14 mph23 km/h
UV peak
5
Monday, Oct 26. Partly sunny. High 68°20°, low 38°3°. Typical 62°17° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 40°4°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 68. West wind around 2 mph.
Night: Mostly clear, with a low around 38. Northwest wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
34°1°–39°4°
Typical high / low
62°17° / 37°3°
Wind
7 mph11 km/h
UV peak
5
Tuesday, Oct 27. Mostly sunny. High 70°21°, low 43°6°. Typical 62°17° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70.
Night: Mostly clear, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
34°1°–43°6°
Typical high / low
62°17° / 36°2°
Wind
6 mph9 km/h, gusts 17 mph27 km/h
UV peak
5
Wednesday, Oct 28. Mostly cloudy. High 64°18°, low 43°6°. Typical 62°17° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
38°3°–46°8°
Typical high / low
62°17° / 36°2°
Wind
7 mph11 km/h, gusts 13 mph20 km/h
UV peak
4
Thursday, Oct 29. Cloudy. High 70°21°, low 44°7°. Typical 61°16° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
41°5°–44°7°
Typical high / low
61°16° / 36°2°
Wind
3 mph5 km/h, gusts 13 mph22 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 72°22°, low 47°8°. Typical 61°16° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Night: Mostly clear, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–75°24°
Low, likely
38°3°–47°8°
Typical high / low
61°16° / 35°2°
Wind
5 mph7 km/h, gusts 16 mph25 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 71°22°, low 45°7°. Typical 61°16° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 71.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
43°6°–47°8°
Typical high / low
61°16° / 35°2°
Wind
7 mph11 km/h, gusts 18 mph29 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 65°18°, low 50°10°. Typical 60°16° / 35°2°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  30% chance · 0.02 in0.4 mm
3. Evening
  6 PM–midnight
  Cloudy, 60°15°
  30% chance · 0.04 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 59°15°
  20% chance · 0.04 in1.1 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–70°21°
Low, likely
45°7°–52°11°
Typical high / low
60°16° / 35°2°
Wind
7 mph12 km/h, gusts 21 mph34 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 66°19°, low 51°11°. Typical 60°16° / 34°1°. Rain 0.44 in11 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 54°12°
  20% chance · 0.18 in4.5 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
60°16°–70°21°
Low, likely
40°4°–57°14°
Typical high / low
60°16° / 34°1°
Wind
13 mph21 km/h, gusts 31 mph49 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 59°, low 37°.
Tomorrow
Dry, high 61°, low 36°.
Monday
Dry, high 68°, low 38°, warming up.
Rest of week
Mostly dry, highs 64–72°.

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

New River at Radford

8.9 mi

Below flood stage

Level: 2.2 ft
Flow: 1,570 cfs

Forecast peak 2.2 ft Sat 8 PM

Reading from Sat 5:15 PM · NWS gauge page

N. F. Roanoke River near Ellett

3.9 mi

Below flood stage

Level: 4.1 ft

Reading from Sat 6 PM · NWS gauge page

South Fork Roanoke River near Shawsville

9.4 mi

Below flood stage

Level: 0.5 ft
Flow: 28 cfs

Reading from Sat 5:50 PM · NWS gauge page

Little River (VA) at Little River Reservoir

12 mi

Level: 1.3 ft

Reading from Sat 5:30 PM · NWS gauge page

For your home

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

Heating this week

About 71% less heating than a typical week.

This week 32Typical 111

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 25
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 15 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 40°F).

Open the windows?

Mon, 1:00 PM–5:00 PM

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

Is this typical?

Blacksburg Nwso · official normals 1991–2020 · records 1952–2026

Oct 24, today vs a typical year

Today’s expected high is 4°2° colder than typical.

Last 7 days vs normal

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

−9°−5°SunOct 18
−7°−4°MonOct 19
−1°TueOct 20
+1°WedOct 21
+2°+1°ThuOct 22
+2°+1°FriOct 23
−1°SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 55 min; Losing 2 min 16 s a day; shortest Dec 21, 1 h 19 min less
Golden hour: 5:57–6:49 PM; Morning 7:21–8:14 AM
Blue hour: 6:49–6:59 PM; Morning 7:11–7:21 AM; first light 7:11 AM

Stars tonight? Fair

Clear 6:59 PM–6 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:52 AM · rises 5:29 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Merrimac. The highest point on the skyline is about 4,300 ft, 12 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Merrimac, VA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

New River at Radford

N. F. Roanoke River near Ellett

South Fork Roanoke River near Shawsville

Little River (VA) at Little River Reservoir

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