Herndon Hourly Forecast
Next 48 Hours
Today
Partly cloudy. Highs in the mid 60s. South winds 5 to 10 mph.
Tonight
Mostly cloudy, then becoming partly cloudy late in the evening, then becoming mostly clear. Lows in the lower 30s. South winds 5 to 10 mph, becoming west after midnight.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
11 AM Partly Cloudy  UV Index: 1.6 |
39°F Feels 36°F |
88% | 7.2 SSW | 29.95 inHg | 32°F | 0% |
12 PM Partly Cloudy UV Index: 2.2 |
48°F Feels 47°F |
66% | 6.9 SSW | 29.87 inHg | 33.4°F | 0% |
1 PM Sunny UV Index: 2.3 |
52°F Feels 52°F |
43% | 8.3 S | 29.75 inHg | 34.2°F | 0% |
2 PM SunnyUV Index: 1.7 |
55°F Feels 55°F |
48% | 10.1 S | 29.74 inHg | 36°F | 0% |
3 PM SunnyUV Index: 1 |
61°F Feels 61°F |
44% | 11.2 S | 29.71 inHg | 36.6°F | 0% |
4 PM SunnyUV Index: 0.4 |
60°F Feels 60°F |
33% | 12.1 S | 29.64 inHg | 36.1°F | 0% |
5 PM SunnyUV Index: 0 |
57°F Feels 57°F |
48% | 11 SSE | 29.67 inHg | 39.6°F | 0% |
6 PM Partly Cloudy  UV Index: 0 |
55°F Feels 54°F |
52% | 9.2 SSE | 29.66 inHg | 37.8°F | 0% |
7 PM Cloudy  UV Index: 0 |
52°F Feels 50°F |
53% | 9.8 SSE | 29.63 inHg | 36.4°F | 0% |
8 PM Clear  UV Index: 0 |
49°F Feels 47°F |
66% | 10.3 SSE | 29.67 inHg | 38°F | 0% |
9 PM Clear UV Index: 0 |
45°F Feels 42°F |
74% | 9.6 S | 29.68 inHg | 38.1°F | 0% |
10 PM Clear UV Index: 0 |
43°F Feels 39°F |
85% | 8.7 SSW | 29.65 inHg | 37.4°F | 0% |
11 PM Partly Cloudy UV Index: 0 |
40°F Feels 36°F |
90% | 8.3 SSW | 29.68 inHg | 37.6°F | 0% |
Sunday
Partly cloudy, then becoming mostly sunny early in the afternoon, then becoming partly cloudy. Highs in the upper 50s. North winds 5 to 15 mph.
Sunday Night
Partly cloudy. Slight chance of rain and snow showers in the evening. Lows in the mid 20s. North winds 10 to 15 mph. Chance of precipitation 20 percent.
| Sun, Nov 24th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Clear UV Index: 0 |
37°F Feels 33°F |
92% | 7.4 SW | 29.68 inHg | 35.2°F | 0% |
1 AM Mist UV Index: 0 |
36°F Feels 31°F |
94% | 6.5 WSW | 29.65 inHg | 33°F | 0% |
2 AM MistUV Index: 0 |
34°F Feels 29°F |
93% | 4.9 W | 29.68 inHg | 32°F | 0% |
3 AM MistUV Index: 0 |
34°F Feels 28°F |
93% | 4 W | 29.69 inHg | 31.5°F | 0% |
4 AM Clear UV Index: 0 |
34°F Feels 27°F |
92% | 4.5 NW | 29.7 inHg | 31°F | 0% |
5 AM Cloudy UV Index: 0 |
34°F Feels 27°F |
82% | 7.6 NNW | 29.74 inHg | 28.7°F | 0% |
6 AM Cloudy UV Index: 0 |
34°F Feels 27°F |
77% | 8.5 N | 29.75 inHg | 27.5°F | 0% |
7 AM Overcast  UV Index: 0 |
35°F Feels 28°F |
72% | 7.4 NNW | 29.77 inHg | 26.4°F | 0% |
8 AM Overcast  UV Index: 0 |
36°F Feels 29°F |
61% | 8.3 NNW | 29.81 inHg | 24°F | 0% |
9 AM Overcast UV Index: 0.3 |
37°F Feels 30°F |
56% | 8.9 NNW | 29.83 inHg | 22.9°F | 0% |
10 AM SunnyUV Index: 0.8 |
42°F Feels 35°F |
51% | 7.6 N | 29.85 inHg | 21.7°F | 0% |
11 AM SunnyUV Index: 1.6 |
46°F Feels 40°F |
46% | 12.1 NNE | 29.83 inHg | 26.3°F | 0% |
12 PM SunnyUV Index: 2.1 |
50°F Feels 44°F |
44% | 11.9 NNE | 29.82 inHg | 28.6°F | 0% |
1 PM SunnyUV Index: 2.3 |
52°F Feels 47°F |
42% | 11 NNE | 29.81 inHg | 31°F | 0% |
2 PM SunnyUV Index: 1.9 |
53°F Feels 48°F |
41% | 11.4 NNE | 29.81 inHg | 30.4°F | 0% |
3 PM SunnyUV Index: 1.2 |
53°F Feels 49°F |
40% | 11.6 NNE | 29.81 inHg | 30.1°F | 0% |
4 PM Partly Cloudy UV Index: 0.5 |
51°F Feels 47°F |
39% | 11.9 NNE | 29.8 inHg | 29.8°F | 0% |
5 PM Partly Cloudy UV Index: 0 |
49°F Feels 45°F |
46% | 12.1 NNE | 29.86 inHg | 29.4°F | 0% |
6 PM Partly Cloudy UV Index: 0 |
47°F Feels 43°F |
49% | 12.5 NNE | 29.89 inHg | 29.2°F | 0% |
7 PM Partly Cloudy UV Index: 0 |
46°F Feels 42°F |
52% | 13.2 NNE | 29.92 inHg | 29°F | 0% |
8 PM Partly Cloudy UV Index: 0 |
44°F Feels 40°F |
53% | 15.4 NNE | 29.97 inHg | 27.6°F | 0% |
9 PM Partly Cloudy UV Index: 0 |
43°F Feels 39°F |
53% | 16.1 NNE | 29.99 inHg | 26.9°F | 0% |
10 PM Cloudy UV Index: 0 |
41°F Feels 35°F |
53% | 16.3 NNE | 30.01 inHg | 26.2°F | 0% |
11 PM Patchy Rain Nearby UV Index: 0 |
41°F Feels 35°F |
38% | 16.3 NNE | 30.04 inHg | 16°F | 64% |
Monday
Partly cloudy in the morning, then clearing. Highs in the lower 40s. Northwest winds 5 to 10 mph.
Monday Night
Increasing clouds. Lows in the mid 20s.
| Mon, Nov 25th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Cloudy UV Index: 0 |
41°F Feels 36°F |
55% | 16.1 NNE | 30.08 inHg | 25.9°F | 0% |
1 AM Overcast UV Index: 0 |
40°F Feels 36°F |
56% | 15 N | 30.11 inHg | 25.8°F | 0% |
2 AM Overcast UV Index: 0 |
40°F Feels 36°F |
57% | 14.3 N | 30.13 inHg | 25.7°F | 0% |
3 AM Overcast UV Index: 0 |
39°F Feels 36°F |
58% | 15.7 N | 30.14 inHg | 25.6°F | 0% |
4 AM Overcast UV Index: 0 |
38°F Feels 35°F |
59% | 15 N | 30.16 inHg | 25.5°F | 0% |
5 AM Overcast UV Index: 0 |
37°F Feels 34°F |
62% | 13 NNW | 30.19 inHg | 25.4°F | 0% |
6 AM Overcast UV Index: 0 |
36°F Feels 33°F |
64% | 13.9 NNW | 30.21 inHg | 25.3°F | 0% |
7 AM Partly Cloudy UV Index: 0 |
36°F Feels 32°F |
65% | 13.4 NNW | 30.23 inHg | 25.2°F | 0% |
8 AM Partly Cloudy UV Index: 0 |
36°F Feels 32°F |
64% | 10.3 NNW | 30.32 inHg | 24.8°F | 0% |
9 AM Partly Cloudy UV Index: 0.2 |
36°F Feels 31°F |
64% | 8.9 NNW | 30.36 inHg | 24.6°F | 0% |
10 AM SunnyUV Index: 0.7 |
38°F Feels 34°F |
63% | 10.3 NNW | 30.4 inHg | 24.4°F | 0% |
Currently
 |
35°F |
29.88in
Barometer 89%
Humidity North 0.0mph Wind |
| Fair | ||
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