Herndon Hourly Forecast
Next 48 Hours
This Afternoon
Cloudy with a chance of rain showers, snow showers with a slight chance of freezing rain. Near steady temperature in the mid 30s. West winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 50 percent.
Tonight
Cloudy. Rain showers, snow showers with a slight chance of freezing rain in the evening, then a chance of rain showers after midnight. Snow accumulation up to 1 inch. Near steady temperature in the mid 30s. West winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 90 percent.
| Fri, Nov 22nd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
2 PM Overcast  UV Index: 1.4 |
31°F Feels 22°F |
89% | 12.1 W | 29.87 inHg | 28.2°F | 0% |
3 PM Overcast UV Index: 0.6 |
32°F Feels 22°F |
87% | 14.8 W | 29.86 inHg | 28.7°F | 0% |
4 PM Overcast UV Index: 0.1 |
33°F Feels 23°F |
89% | 15.4 W | 29.84 inHg | 29.9°F | 0% |
5 PM Overcast UV Index: 0 |
33°F Feels 23°F |
92% | 15.9 W | 29.82 inHg | 30.8°F | 0% |
6 PM Overcast  UV Index: 0 |
33°F Feels 22°F |
95% | 16.6 W | 29.82 inHg | 31.7°F | 0% |
7 PM Overcast UV Index: 0 |
33°F Feels 22°F |
95% | 17 W | 29.84 inHg | 31.6°F | 0% |
8 PM Overcast UV Index: 0 |
33°F Feels 22°F |
96% | 17 WNW | 29.84 inHg | 31.2°F | 0% |
9 PM Overcast UV Index: 0 |
33°F Feels 22°F |
96% | 16.8 WNW | 29.84 inHg | 31.7°F | 0% |
10 PM Overcast UV Index: 0 |
34°F Feels 23°F |
97% | 16.8 WNW | 29.84 inHg | 32.4°F | 0% |
11 PM Overcast UV Index: 0 |
34°F Feels 24°F |
97% | 17.4 WNW | 29.85 inHg | 33.4°F | 0% |
Saturday
Cloudy. A slight chance of rain showers in the morning. Highs in the lower 40s. West winds 10 to 15 mph. Gusts up to 35 mph in the morning. Chance of rain 20 percent.
Saturday Night
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. Southwest winds 5 to 10 mph.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Overcast UV Index: 0 |
35°F Feels 25°F |
97% | 16.8 WNW | 29.85 inHg | 33.6°F | 0% |
1 AM Overcast UV Index: 0 |
36°F Feels 26°F |
97% | 16.1 WNW | 29.85 inHg | 34.9°F | 0% |
2 AM Overcast UV Index: 0 |
36°F Feels 27°F |
97% | 15.9 WNW | 29.86 inHg | 35.7°F | 0% |
3 AM Overcast UV Index: 0 |
37°F Feels 28°F |
97% | 15.2 WNW | 29.87 inHg | 36.1°F | 0% |
4 AM Overcast UV Index: 0 |
37°F Feels 28°F |
97% | 14.5 WNW | 29.87 inHg | 36.3°F | 0% |
5 AM Overcast UV Index: 0 |
37°F Feels 28°F |
97% | 14.3 WNW | 29.89 inHg | 36.4°F | 0% |
6 AM Overcast UV Index: 0 |
37°F Feels 29°F |
97% | 13.4 WNW | 29.93 inHg | 36.4°F | 0% |
7 AM Overcast UV Index: 0 |
37°F Feels 29°F |
97% | 11.6 WNW | 29.95 inHg | 36.4°F | 0% |
8 AM Light Sleet UV Index: 0 |
37°F Feels 29°F |
97% | 11.6 WNW | 29.97 inHg | 36.4°F | 100% Rain est. 0.04in |
9 AM Overcast UV Index: 0.1 |
37°F Feels 29°F |
97% | 13 WNW | 30 inHg | 36.4°F | 0% |
10 AM Overcast UV Index: 0.3 |
38°F Feels 30°F |
97% | 11.9 WNW | 30.03 inHg | 36.6°F | 0% |
11 AM Overcast UV Index: 0.6 |
38°F Feels 30°F |
97% | 12.1 WNW | 30.04 inHg | 37°F | 0% |
12 PM Overcast UV Index: 0.7 |
38°F Feels 30°F |
97% | 11.2 WNW | 30.05 inHg | 37.3°F | 0% |
1 PM Overcast UV Index: 0.7 |
38°F Feels 31°F |
96% | 10.7 WNW | 30.04 inHg | 37.4°F | 0% |
2 PM Overcast UV Index: 0.6 |
38°F Feels 31°F |
97% | 11.2 W | 30.05 inHg | 37.6°F | 0% |
3 PM Overcast UV Index: 0.3 |
38°F Feels 32°F |
97% | 11 W | 30.07 inHg | 37.7°F | 0% |
4 PM Overcast UV Index: 0.1 |
39°F Feels 32°F |
97% | 10.7 W | 30.08 inHg | 37.8°F | 0% |
5 PM Overcast UV Index: 0 |
38°F Feels 32°F |
97% | 10.5 W | 30.09 inHg | 37.8°F | 0% |
6 PM Overcast UV Index: 0 |
38°F Feels 32°F |
97% | 9.8 W | 30.1 inHg | 37.5°F | 0% |
7 PM Overcast UV Index: 0 |
38°F Feels 32°F |
97% | 9.4 W | 30.11 inHg | 37.3°F | 0% |
8 PM Overcast UV Index: 0 |
38°F Feels 32°F |
98% | 8.9 W | 30.12 inHg | 37.1°F | 0% |
9 PM Overcast UV Index: 0 |
37°F Feels 31°F |
97% | 7.8 W | 30.13 inHg | 36.4°F | 0% |
10 PM Overcast UV Index: 0 |
39°F Feels 33°F |
97% | 7.2 W | 30.14 inHg | 36°F | 0% |
11 PM Overcast UV Index: 0 |
37°F Feels 32°F |
91% | 6.9 W | 30.09 inHg | 37.7°F | 0% |
Sunday
Mostly sunny. Not as cool with highs in the lower 50s. Southwest winds around 5 mph.
Sunday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.
| Sun, Nov 24th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Fog UV Index: 0 |
37°F Feels 32°F |
97% | 5.6 WSW | 30.14 inHg | 35.4°F | 0% |
1 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 4.9 WSW | 30.14 inHg | 35.2°F | 0% |
2 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 5.1 WSW | 30.13 inHg | 35.1°F | 0% |
3 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 4.7 WSW | 30.14 inHg | 35.2°F | 0% |
4 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 3.6 SW | 30.14 inHg | 35.2°F | 0% |
5 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 3.4 SW | 30.14 inHg | 35.3°F | 0% |
6 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 2.7 SW | 30.16 inHg | 35.1°F | 0% |
7 AM FogUV Index: 0 |
36°F Feels 31°F |
97% | 2.7 SW | 30.16 inHg | 35.1°F | 0% |
8 AM Mist UV Index: 0 |
36°F Feels 31°F |
97% | 2.7 SSW | 30.17 inHg | 35°F | 0% |
9 AM MistUV Index: 0.5 |
37°F Feels 32°F |
96% | 2.7 SSW | 30.18 inHg | 35.5°F | 0% |
10 AM MistUV Index: 1.2 |
37°F Feels 32°F |
95% | 3.1 WSW | 30.19 inHg | 35.8°F | 0% |
11 AM MistUV Index: 2 |
39°F Feels 34°F |
94% | 4.3 WSW | 30.2 inHg | 36.1°F | 0% |
12 PM MistUV Index: 2.5 |
40°F Feels 36°F |
90% | 6 WSW | 30.17 inHg | 37.4°F | 0% |
1 PM MistUV Index: 2.4 |
41°F Feels 37°F |
88% | 6.9 W | 30.16 inHg | 38°F | 0% |
Currently
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