Skip to content
Satellite view of U and I McNary Number One Reservoir

U and I McNary Number One Reservoir

Reservoir

Great conditions today

Interactive map not available

Weather at U and I McNary Number One Reservoir

H: 102° L: 67°
Overcast
Overcast
86°
|
Feels like 82°
Precipitation
9%
Humidity
22%
Wind
4 mph
UV Index
2.8
Water Conditions:
🏊Perfect for swimming
12 AM
Overcast
76°
3 AM
Overcast
71°
6 AM
Overcast
67°
9 AM
Overcast
79°
12 PM
Overcast
93°
3 PM
Overcast
101°
6 PM
Overcast
98°
9 PM
Overcast
90°

Sponsored gear checklist

Pack smarter for U and I McNary Number One Reservoir

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

As an Amazon Associate we earn from qualifying purchases.

Frequently asked questions

Where is U and I McNary Number One Reservoir?
U and I McNary Number One Reservoir is a reservoir in Washington.
Can you swim at U and I McNary Number One Reservoir?
There is no fixed answer for U and I McNary Number One Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at U and I McNary Number One Reservoir in Washington. Check current water conditions before you go, and follow posted signs and local guidance.

Visitor Reviews

Be the first to share your experience here

Join our community to share your water adventures

Earn badges as you share your experiences!

💧 Droplet💦 Stream🌊 Wave💧 Current🌀 Tide🌊 Ocean

No reviews yet — share what you know

Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

☀️
Right Now
Very warm - visit early morning or evening
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Washington

</> Embed this location on your site

Paste this snippet into your website to show a live badge for U and I McNary Number One Reservoir — free to use with the included credit link.