Updated
Alton Lake
Reservoir
Use caution — no live reading, and an advisory is in effect
Use cautionUse caution — no live reading, and an advisory is in effect: an Extreme Heat Warning is in effect for Montague; Cooke; Grayson; Fannin; Lamar; Young; Jack; Wise; Denton; Collin; Hunt; Delta; Hopkins and other areas.
- An Extreme Heat Warning is in effect for Montague; Cooke; Grayson; Fannin; Lamar; Young; Jack; Wise; Denton; Collin; Hunt; Delta; Hopkins and other areas.
- No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).
Interactive map not available
Use caution — no live reading, and an advisory is in effect
Use cautionUse caution — no live reading, and an advisory is in effect: an Extreme Heat Warning is in effect for Montague; Cooke; Grayson; Fannin; Lamar; Young; Jack; Wise; Denton; Collin; Hunt; Delta; Hopkins and other areas.
- An Extreme Heat Warning is in effect for Montague; Cooke; Grayson; Fannin; Lamar; Young; Jack; Wise; Denton; Collin; Hunt; Delta; Hopkins and other areas. — NWS Fort Worth TX
- No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).
- No live water-temperature reading for this spot.
Official advisories
Checked against Texas Beach Watch (Texas GLO) — no advisory posted.
Weather at Alton Lake
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Frequently asked questions
- Where is Alton Lake?
- Alton Lake is a reservoir in Texas.
- Can you swim at Alton Lake?
- Use caution — no live reading, and an advisory is in effect: an Extreme Heat Warning is in effect for Montague; Cooke; Grayson; Fannin; Lamar; Young; Jack; Wise; Denton; Collin; Hunt; Delta; Hopkins and other areas. Checked August 23, 2026.
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- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
Location & Contact
Texas
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