# Top Science Websites in United States
The top 10 most visited science websites in United States by Ahrefs organic search traffic estimates. Updated monthly.
September 2025
| Rank | Website | Search traffic | ||
|---|---|---|---|---|
| 1 | ↑1 | weather.com |
20.1M
-1.8M
|
-1.8M |
| 2 | ↓1 | openai.com |
16M
-90.1M
|
-90.1M |
| 3 | ↑1 | accuweather.com |
11.2M
-1.8M
|
-1.8M |
| 4 | ↓1 | weather.gov |
10.8M
-2.3M
|
-2.3M |
| 5 | noaa.gov |
9.2M
+706.7K
|
+706.7K | |
| 6 | ↑1 | sciencedirect.com |
6.7M
+346K
|
+346K |
| 7 | ↓1 | nasa.gov |
5.9M
-770.6K
|
-770.6K |
| 8 | ↑1 | howstuffworks.com |
4M
-186.5K
|
-186.5K |
| 9 | ↑2 | usgs.gov |
3.3M
+581.5K
|
+581.5K |
| 10 | ↓2 | wunderground.com |
3M
-1.2M
|
-1.2M |
## Top Trending Websites
Websites that changed positions within the top 100 rankings in September 2025.
Trending up
#9
usgs.gov
↑2
#1
weather.com
↑1
↑1
↑1
↑1
#5
noaa.gov
#2
openai.com
↑1
#4
weather.gov
↑1
#7
nasa.gov
↑1
#10
wunderground.com
↑2
Trending down
#10
wunderground.com
↓2
#2
openai.com
↓1
#4
weather.gov
↓1
#7
nasa.gov
↓1
#5
noaa.gov
#1
weather.com
↓1
↓1
↓1
↓1
#9
usgs.gov
↓2