Fairfax Hourly Weather
36 Hour Weather Scroll °F 
°C
°CCurrently, Mostly Cloudy, temperature is 48°F, humidity 74%. Wind direction is N at 0 mph with visibility of 10.00 mi. Barometric pressure is 29.88 in.
Apr 18 1:00 AM | Apr 18 2:00 AM | Apr 18 3:00 AM | Apr 18 4:00 AM | Apr 18 5:00 AM | Apr 18 6:00 AM | Apr 18 7:00 AM | Apr 18 8:00 AM | Apr 18 9:00 AM | Apr 18 10:00 AM | Apr 18 11:00 AM | Apr 18 NOON | Apr 18 1:00 PM | Apr 18 2:00 PM | Apr 18 3:00 PM | Apr 18 4:00 PM | Apr 18 5:00 PM | Apr 18 6:00 PM | Apr 18 7:00 PM | Apr 18 8:00 PM | Apr 18 9:00 PM | Apr 18 10:00 PM | Apr 18 11:00 PM | Apr 19 MIDNIGHT | Apr 19 1:00 AM | Apr 19 2:00 AM | Apr 19 3:00 AM | Apr 19 4:00 AM | Apr 19 8:00 AM | Apr 19 9:00 AM | Apr 19 10:00 AM | Apr 19 2:00 PM | Apr 19 3:00 PM | Apr 19 4:00 PM | 8:00 PM | 8:00 PM |
 | | | | | | | | |  | | | | | | | | |  | | |  | | | | | |  | | | | | |  | | |
| Cloudy | Cloudy | Cloudy | Cloudy | Cloudy | Cloudy | Cloudy | Cloudy | Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Clear | Clear | Clear | Clear | Clear | Clear | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | |||
| 48°F9°C | 47°F8°C | 46°F8°C | 46°F8°C | 45°F7°C | 46°F8°C | 48°F9°C | 49°F9°C | 52°F11°C | 56°F13°C | 59°F15°C | 61°F16°C | 63°F17°C | 65°F18°C | 66°F19°C | 66°F19°C | 67°F19°C | 65°F18°C | 64°F18°C | 62°F17°C | 59°F15°C | 57°F14°C | 54°F12°C | 52°F11°C | 51°F11°C | 49°F9°C | 50°F10°C | 50°F10°C | 51°F11°C | 55°F13°C | 60°F16°C | 64°F18°C | 43°F6°C | 21°F-6°C | °F-18°C | **°F°C |
| - | - | Rain | Rain | Rain | Rain | Rain | Rain | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 20% | 20% | 21% | 21% | 21% | 21% | 21% | 21% | 4% | 4% | 4% | 4% | 4% | 4% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 1% | 5% | 5% | 5% | % | % | % | % |
| 40°F4°C | 40°F4°C | 40°F4°C | 40°F4°C | 40°F4°C | 40°F4°C | 41°F5°C | 41°F5°C | 40°F4°C | 40°F4°C | 39°F4°C | 38°F3°C | 38°F3°C | 37°F3°C | 37°F3°C | 36°F2°C | 36°F2°C | 37°F3°C | 37°F3°C | 38°F3°C | 38°F3°C | 39°F4°C | 39°F4°C | 39°F4°C | 39°F4°C | 39°F4°C | 40°F4°C | 40°F4°C | 41°F5°C | 41°F5°C | 40°F4°C | 40°F4°C | 27°F-3°C | 13°F-11°C | °F-18°C | **°F°C |
| 74% | 76% | 79% | 79% | 83% | 79% | 77% | 74% | 63% | 55% | 47% | 42% | 40% | 35% | 34% | 33% | 32% | 35% | 37% | 41% | 46% | 51% | 57% | 61% | 63% | 68% | 68% | 68% | 68% | 59% | 48% | 41% | 53% | 71% | ** | ** |
| S | S | S | S | S | S | SW | SSW | SSW | W | NW | NW | WNW | WNW | WNW | WNW | WNW | W | SSW | SW | SW | SW | SW | SSW | SSW | SSW | W | WNW | NW | W | SSW | SW | SSE | ENE | N | N |
| 1 mph | 1 mph | 1 mph | 1 mph | 1 mph | 1 mph | 2 mph | 2 mph | 2 mph | 5 mph | 5 mph | 5 mph | 7 mph | 7 mph | 7 mph | 8 mph | 8 mph | 8 mph | 4 mph | 4 mph | 4 mph | 4 mph | 4 mph | 4 mph | 2 mph | 2 mph | 2 mph | 3 mph | 3 mph | 3 mph | 5 mph | 5 mph | 5 mph | mph | 0 mph | ** mph |
| 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 10 mi16 km | 5 mi8 km | .5 mi1 km | mi km | mi km |
| Hour (EDT) |
| Weather |
| Clouds |
| Temperature |
| Precip. Type |
| POP |
| Dewpoint |
| Humidity |
| Wind Direction |
| Wind Speed |
| Visibility |
POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.
24 Hour Forecast
Rest of Tonight - Mostly cloudy with a slight chance of showers
late this evening, then partly cloudy. Lows in the mid 40s.
Northwest winds around 5 mph. Chance of rain 20%.
Sunday - Mostly sunny. A slight chance of showers in the
afternoon. Highs in the mid 60s. West winds around 5 mph. Chance
of rain 20%.
Update is local observation time. What time is it in Fairfax? 1:36 AM Sunday, April 18, 2021
Fairfax, Virginia Hourly Forecast
| Apr 18 | Today |
 |
Midnight - Cloudy, temperatures around 49°F10°C, wind out of the ESE 3 mph4 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 74%. |
 |
3:00 am - Partly cloudy, temperatures around 47°F8°C, wind out of the NW 3 mph5 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 76%. |
|
6:00 am - Partly cloudy, temperatures around 48°F9°C, wind out of the WNW 4 mph6 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 75%. |
 |
9:00 am - Partly cloudy, temperatures around 52°F11°C, wind out of the NW 5 mph9 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 63%. |
|
Noon - Cloudy, temperatures around 58°F15°C, wind out of the NW 7 mph11 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 45%. |
|
3:00 pm - Partly cloudy, temperatures around 62°F16°C, wind out of the NW 6 mph9 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 42%. |
|
6:00 pm - Partly cloudy, temperatures around 60°F15°C, wind out of the WNW 3 mph5 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 50%. |
 |
9:00 pm - Patchy rain possible, temperatures around 56°F13°C, wind out of the WSW 2 mph3 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 63%. |
| Apr 19 | Tomorrow |
|
Midnight - Patchy rain possible, temperatures around 55°F13°C, wind out of the SSW 2 mph3 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 71%. |
|
3:00 am - Patchy rain possible, temperatures around 52°F11°C, wind out of the SSW 3 mph5 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 84%. |
|
6:00 am - Patchy rain possible, temperatures around 50°F10°C, wind out of the SW 3 mph5 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 91%. |
 |
9:00 am - Patchy rain possible, temperatures around 55°F13°C, wind out of the W 3 mph5 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 76%. |
|
Noon - Patchy rain possible, temperatures around 63°F17°C, wind out of the WNW 6 mph9 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 47%. |
|
3:00 pm - Partly cloudy, temperatures around 67°F19°C, wind out of the WNW 6 mph10 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi9 km, humidity 33%. |
|
6:00 pm - Partly cloudy, temperatures around 65°F18°C, wind out of the WNW 4 mph7 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 38%. |
|
9:00 pm - Partly cloudy, temperatures around 58°F15°C, wind out of the W 4 mph6 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 54%. |
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