Skip to content
Satellite view of Heisler Reservoir Number One

Heisler Reservoir Number One

Reservoir

Use caution — no live reading, and an advisory is in effect

Use caution

Use caution — no live reading, and an advisory is in effect: a Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas.

  • A Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas.
  • No live water-temperature reading for this spot.
Use cautionGreat conditions today

Interactive map not available

Use caution — no live reading, and an advisory is in effect

Use caution

Use caution — no live reading, and an advisory is in effect: a Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas.

  • A Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas. NWS Pendleton OR
  • No live water-temperature reading for this spot.

No official beach-advisory feed for Oregon yet — follow posted signs and local guidance.

Weather at Heisler Reservoir Number One

H: 103° L: 67°
Overcast
Overcast
87°
|
Feels like 78°
Precipitation
7%
Humidity
15%
Wind
10 mph
UV Index
0
Water Conditions:
🏊Perfect for swimming
12 AM
Overcast
77°
3 AM
Overcast
73°
6 AM
Overcast
68°
9 AM
Cloudy
78°
12 PM
Overcast
96°
3 PM
Overcast
103°
6 PM
Overcast
97°
9 PM
Overcast
87°

Sponsored gear checklist

Pack smarter for Heisler Reservoir Number One

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 Heisler Reservoir Number One?
Heisler Reservoir Number One is a reservoir in Oregon.
Can you swim at Heisler Reservoir Number One?
Use caution — no live reading, and an advisory is in effect: a Heat Advisory is in effect for Wallowa County; Northern Blue Mountains of Oregon; Southern Blue Mountains of Oregon and other areas. Checked August 22, 2026.

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

Oregon

</> Embed this location on your site

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