Where is Alton-Woodriver Sportsmens Reservoir?

Alton-Woodriver Sportsmens Reservoir is a reservoir in Illinois.

What is the water temperature at Alton-Woodriver Sportsmens Reservoir?

As of August 23, 2026, the water temperature at Alton-Woodriver Sportsmens Reservoir in Illinois is 80°F (27°C), measured by USGS gauge 05587498, 3.3 miles away.

Updated June 13, 2026

Alton-Woodriver Sportsmens Reservoir

Reservoir

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 80°F, within the comfortable 70–86°F range.

Water temperature is 80°F, within the comfortable 70–86°F range.

See full conditions ↓Can I swim today? →

Good to swimGreat conditions today

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Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 80°F, within the comfortable 70–86°F range.

Water temperature is 80°F, within the comfortable 70–86°F range. — USGS gauge 05587498, as of Aug 23, 1:00 PM gauge-local time

Water temp

80°F

27°C

Gage height

18.51 ft

water level

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

Live, provisional data from USGS gauge Mississippi River Pool Lock and Dam 26 at Alton,IL (3.3 mi away), as of Aug 23, 1:00 PM gauge-local time.

Live map near here →

Weather at Alton-Woodriver Sportsmens Reservoir

H: 84° L: 63°

Overcast

82°

Feels like 80°

Precipitation

Humidity

39%

Wind

6 mph

UV Index

7.4

Water Conditions:

🏊Perfect for swimming🧴High UV - use sunscreen

12 AM

69°

3 AM

65°

6 AM

63°

9 AM

71°

12 PM

81°

3 PM

84°

6 PM

79°

9 PM

67°

Pack smarter for Alton-Woodriver Sportsmens Reservoir

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

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Inflatable PaddleboardA popular way to explore calm coves and shorelines.

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Life JacketImportant around boats, paddling, and deeper swimming areas.

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Floating CoolerKeeps drinks nearby for swim areas, docks, and boats.

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Waterproof Phone PouchProtects phones around docks, boats, and splashy shorelines.

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Frequently asked questions

Where is Alton-Woodriver Sportsmens Reservoir?: Alton-Woodriver Sportsmens Reservoir is a reservoir in Illinois.
What is the water temperature at Alton-Woodriver Sportsmens Reservoir?: As of August 23, 2026, the water temperature at Alton-Woodriver Sportsmens Reservoir in Illinois is 80°F (27°C), measured by USGS gauge 05587498, 3.3 miles away.
Can you swim at Alton-Woodriver Sportsmens Reservoir?: Comfortable for a swim today: water temperature is 80°F, within the comfortable 70–86°F range. Checked August 23, 2026.

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🏞️ 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

Illinois

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