Hourly Weather Forecast for Great Falls, Virginia 22066 - The Weather Channel | Weather.com

Advertisement

Advertisement

Advertisement

Advertisement

Hourly Weather-

As of 6:44 am EDT

Small Craft Advisory

Saturday, March 14

7 am

Mostly Clear

47°

0%

WNW 10 mph

Mostly Clear

Feels Like42°
WindWNW 10 mph
Humidity28%
UV Index0 of 11
Cloud Cover26%
Rain Amount0 in

8 am

Mostly Sunny

46°

0%

WNW 10 mph

Mostly Sunny

Feels Like41°
WindWNW 10 mph
Humidity30%
UV Index0 of 11
Cloud Cover21%
Rain Amount0 in

9 am

Partly Cloudy

47°

0%

WNW 11 mph

Partly Cloudy

Feels Like42°
WindWNW 11 mph
Humidity31%
UV Index1 of 11
Cloud Cover30%
Rain Amount0 in

10 am

Partly Cloudy

48°

0%

WNW 12 mph

Partly Cloudy

Feels Like43°
WindWNW 12 mph
Humidity33%
UV Index2 of 11
Cloud Cover42%
Rain Amount0 in

11 am

Partly Cloudy

49°

0%

WNW 13 mph

Partly Cloudy

Feels Like44°
WindWNW 13 mph
Humidity29%
UV Index3 of 11
Cloud Cover34%
Rain Amount0 in

12 pm

Partly Cloudy

52°

0%

WNW 13 mph

Partly Cloudy

Feels Like47°
WindWNW 13 mph
Humidity26%
UV Index4 of 11
Cloud Cover36%
Rain Amount0 in

Advertisement

1 pm

Partly Cloudy

54°

0%

WNW 12 mph

Partly Cloudy

Feels Like50°
WindWNW 12 mph
Humidity23%
UV Index5 of 11
Cloud Cover30%
Rain Amount0 in

2 pm

Partly Cloudy

56°

0%

WNW 12 mph

Partly Cloudy

Feels Like52°
WindWNW 12 mph
Humidity21%
UV Index5 of 11
Cloud Cover37%
Rain Amount0 in

3 pm

Partly Cloudy

56°

0%

WNW 12 mph

Partly Cloudy

Feels Like54°
WindWNW 12 mph
Humidity19%
UV Index4 of 11
Cloud Cover47%
Rain Amount0 in

4 pm

Mostly Cloudy

57°

0%

WNW 12 mph

Mostly Cloudy

Feels Like54°
WindWNW 12 mph
Humidity19%
UV Index2 of 11
Cloud Cover64%
Rain Amount0 in

5 pm

Mostly Cloudy

56°

0%

NW 10 mph

Mostly Cloudy

Feels Like54°
WindNW 10 mph
Humidity20%
UV Index1 of 11
Cloud Cover75%
Rain Amount0 in

6 pm

Mostly Cloudy

55°

0%

NW 8 mph

Mostly Cloudy

Feels Like53°
WindNW 8 mph
Humidity20%
UV Index0 of 11
Cloud Cover76%
Rain Amount0 in

7 pm

Mostly Cloudy

53°

0%

NNW 6 mph

Mostly Cloudy

Feels Like52°
WindNNW 6 mph
Humidity23%
UV Index0 of 11
Cloud Cover75%
Rain Amount0 in

8 pm

Mostly Cloudy

51°

0%

N 4 mph

Mostly Cloudy

Feels Like50°
WindN 4 mph
Humidity27%
UV Index0 of 11
Cloud Cover61%
Rain Amount0 in

9 pm

Partly Cloudy

48°

0%

NNE 4 mph

Partly Cloudy

Feels Like47°
WindNNE 4 mph
Humidity30%
UV Index0 of 11
Cloud Cover58%
Rain Amount0 in

10 pm

Mostly Cloudy

46°

0%

NE 3 mph

Mostly Cloudy

Feels Like45°
WindNE 3 mph
Humidity33%
UV Index0 of 11
Cloud Cover76%
Rain Amount0 in

11 pm

Mostly Cloudy

45°

0%

ENE 3 mph

Mostly Cloudy

Feels Like44°
WindENE 3 mph
Humidity36%
UV Index0 of 11
Cloud Cover62%
Rain Amount0 in

Sunday, March 15

12 am

Partly Cloudy

44°

0%

ENE 3 mph

Partly Cloudy

Feels Like43°
WindENE 3 mph
Humidity38%
UV Index0 of 11
Cloud Cover56%
Rain Amount0 in

Advertisement

1 am

Partly Cloudy

43°

0%

E 4 mph

Partly Cloudy

Feels Like41°
WindE 4 mph
Humidity41%
UV Index0 of 11
Cloud Cover52%
Rain Amount0 in

2 am

Cloudy

42°

0%

E 4 mph

Cloudy

Feels Like39°
WindE 4 mph
Humidity43%
UV Index0 of 11
Cloud Cover82%
Rain Amount0 in

3 am

Cloudy

41°

0%

E 5 mph

Cloudy

Feels Like38°
WindE 5 mph
Humidity46%
UV Index0 of 11
Cloud Cover86%
Rain Amount0 in

4 am

Mostly Cloudy

40°

1%

ESE 5 mph

Mostly Cloudy

Feels Like37°
WindESE 5 mph
Humidity48%
UV Index0 of 11
Cloud Cover76%
Rain Amount0 in

5 am

Mostly Cloudy

40°

1%

ESE 5 mph

Mostly Cloudy

Feels Like37°
WindESE 5 mph
Humidity48%
UV Index0 of 11
Cloud Cover77%
Rain Amount0 in

6 am

Mostly Cloudy

40°

1%

ESE 6 mph

Mostly Cloudy

Feels Like36°
WindESE 6 mph
Humidity50%
UV Index0 of 11
Cloud Cover65%
Rain Amount0 in

7 am

Mostly Cloudy

40°

1%

ESE 6 mph

Mostly Cloudy

Feels Like36°
WindESE 6 mph
Humidity51%
UV Index0 of 11
Cloud Cover68%
Precip Amount0 in

8 am

Partly Cloudy

41°

1%

ESE 6 mph

Partly Cloudy

Feels Like36°
WindESE 6 mph
Humidity51%
UV Index0 of 11
Cloud Cover54%
Rain Amount0 in

9 am

Partly Cloudy

43°

0%

ESE 7 mph

Partly Cloudy

Feels Like39°
WindESE 7 mph
Humidity50%
UV Index1 of 11
Cloud Cover52%
Rain Amount0 in

10 am

Mostly Cloudy

46°

0%

ESE 9 mph

Mostly Cloudy

Feels Like42°
WindESE 9 mph
Humidity45%
UV Index1 of 11
Cloud Cover66%
Rain Amount0 in

11 am

Cloudy

49°

0%

ESE 10 mph

Cloudy

Feels Like45°
WindESE 10 mph
Humidity41%
UV Index2 of 11
Cloud Cover81%
Rain Amount0 in

12 pm

Cloudy

51°

15%

SE 11 mph

Cloudy

Feels Like48°
WindSE 11 mph
Humidity40%
UV Index2 of 11
Cloud Cover97%
Rain Amount0 in

Advertisement

1 pm

Cloudy

53°

15%

SE 11 mph

Cloudy

Feels Like49°
WindSE 11 mph
Humidity43%
UV Index2 of 11
Cloud Cover95%
Rain Amount0 in

2 pm

Cloudy

54°

15%

SE 12 mph

Cloudy

Feels Like51°
WindSE 12 mph
Humidity44%
UV Index2 of 11
Cloud Cover90%
Rain Amount0 in

3 pm

Cloudy

55°

15%

SE 12 mph

Cloudy

Feels Like52°
WindSE 12 mph
Humidity46%
UV Index2 of 11
Cloud Cover92%
Rain Amount0 in

4 pm

Cloudy

56°

15%

SE 13 mph

Cloudy

Feels Like53°
WindSE 13 mph
Humidity48%
UV Index1 of 11
Cloud Cover96%
Rain Amount0 in

5 pm

Cloudy

56°

15%

SE 13 mph

Cloudy

Feels Like53°
WindSE 13 mph
Humidity51%
UV Index1 of 11
Cloud Cover98%
Rain Amount0 in

6 pm

Cloudy

56°

10%

SE 13 mph

Cloudy

Feels Like52°
WindSE 13 mph
Humidity55%
UV Index0 of 11
Cloud Cover99%
Rain Amount0 in

7 pm

Cloudy

55°

18%

SE 12 mph

Cloudy

Feels Like52°
WindSE 12 mph
Humidity61%
UV Index0 of 11
Cloud Cover99%
Rain Amount0 in

8 pm

Few Showers

54°

31%

ESE 10 mph

Few Showers

Feels Like50°
WindESE 10 mph
Humidity68%
UV Index0 of 11
Cloud Cover98%
Rain Amount0.02 in

9 pm

Showers

53°

51%

SE 10 mph

Showers

Feels Like49°
WindSE 10 mph
Humidity74%
UV Index0 of 11
Cloud Cover95%
Rain Amount0.02 in

10 pm

Rain

53°

60%

SE 10 mph

Rain

Feels Like50°
WindSE 10 mph
Humidity77%
UV Index0 of 11
Cloud Cover100%
Rain Amount0.05 in

11 pm

Showers

54°

42%

SE 10 mph

Showers

Feels Like51°
WindSE 10 mph
Humidity79%
UV Index0 of 11
Cloud Cover96%
Rain Amount0.01 in

Monday, March 16

12 am

Cloudy

55°

24%

SE 9 mph

Cloudy

Feels Like52°
WindSE 9 mph
Humidity80%
UV Index0 of 11
Cloud Cover97%
Rain Amount0 in

Advertisement

1 am

Showers

55°

35%

SE 9 mph

Showers

Feels Like53°
WindSE 9 mph
Humidity83%
UV Index0 of 11
Cloud Cover97%
Rain Amount0 in

2 am

Showers

56°

43%

SE 9 mph

Showers

Feels Like54°
WindSE 9 mph
Humidity85%
UV Index0 of 11
Cloud Cover100%
Rain Amount0.01 in

3 am

Showers

57°

48%

SE 9 mph

Showers

Feels Like55°
WindSE 9 mph
Humidity87%
UV Index0 of 11
Cloud Cover100%
Rain Amount0.01 in

4 am

Showers

57°

38%

SE 9 mph

Showers

Feels Like55°
WindSE 9 mph
Humidity89%
UV Index0 of 11
Cloud Cover99%
Rain Amount0 in

5 am

Cloudy

58°

24%

SSE 10 mph

Cloudy

Feels Like56°
WindSSE 10 mph
Humidity90%
UV Index0 of 11
Cloud Cover99%
Rain Amount0 in

6 am

Cloudy

59°

23%

SSE 11 mph

Cloudy

Feels Like56°
WindSSE 11 mph
Humidity92%
UV Index0 of 11
Cloud Cover99%
Rain Amount0 in

Advertisement

Radar

© 2026 Mapbox © OpenStreetMap|Improve this map

Lonely Planet

7 Top Hikes In Kyoto For Scenic Views And Cultural Encounters

10 Of The Best Places For Stargazing In The USA

16 Of The Best Things To Do In London

The Best Time To Visit Europe

Advertisement

Advertisement

Don't Miss

Winter Storm In Upper Midwest Could Bring Blizzard Conditions, Record Snow To Parts Of Wisconsin, Michigan

Another Severe Outbreak Ahead With Damaging Winds

Caught On Camera: Man Saves Dog From Icy Central Park Pond

El Niño Coming This Summer, Says NOAA In Update

Advertisement

We Love Our Critters

Why Frogs Croak Faster In Warm Water: A Survival Strategy

Retreat! Penguins’ Instant Regret After Jumping On Ice Floe

Newly Identified Tick-Borne Bacterium In US Dogs

Hibernating Bears Wake Up From Winter

Travel

And The Best State For An Adventure Vacation Is ...

California Wildflower Superblooms Are Back In 2026

3 Big Changes Coming To National Parks In 2026

‘Rare And Remarkable’: Lake Superior Ice Caves Reopen

Seasonal Hub

St. Patrick's Day Parades: NYC, Chicago, Boston And Savannah Celebrate In Four Different Seasons

When Are The Average Last Freezes In The US?

Allergy Season Grows Longer – Especially In These Places

Record Warmth Is Almost Tripling Record Cold This Year

Advertisement