Lake Weeks Middle
Lake Weeks Middle in Hillsborough County, Florida has a water quality grade of D (Nutrient-rich). Phosphorus: 281 µg/L.
- Typical in August
- 86°F
- Type
- Hypereutrophic
- Trend
- ↓ Declining
- Public access
- Yes
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Lake Weeks Middle →
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Lake Weeks Middle is a highly nutrient-loaded hypereutrophic lake in Hillsborough County, Florida. Water quality is graded D based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 123 other monitored lakes in Hillsborough County, Lake Weeks Middle ranks #112 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-09-09. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyBacteria A
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Based on E. coli testing, Lake Weeks Middle never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 26 samples across 8 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.
Water Quality Grade: D (Nutrient-rich)
No clarity data. Phosphorus level: 281 µg/L. Trophic State Index: 85.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 281 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 85 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Weeks Middle
Compare lakeside cabins, hotels, and vacation rentals near Lake Weeks Middle in Hillsborough County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Lake Weeks Middle are listed below.
Top-rated places to stay near Lake Weeks Middle
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Planning a whole trip? See where to stay at Florida’s top lakes →
Water Temperature
Lake Weeks Middle typically sits around 86°F at the surface in August. Summer average is about 86°F. Usually warmest in Aug (about 86°F) and coldest in Feb (about 62°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 43 field readings (2010–2025) via the EPA Water Quality Portal. See the full Lake Weeks Middle water temperature breakdown →
Recreation & Access
- Lake Weeks (Lake Seffner) Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Weeks Middle
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↓ Declining | +48.99 µg/L/yr | 6 |
EPA Impairment Status
Lake Weeks Middle is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL1547C · Official waterbody report · Matched by proximity (0.06 km)
County Ranking
Ranked #112 of 124 lakes in Hillsborough County
Nearby Lakes With Higher Grades
Lake Weeks Middle holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Hillsborough County
Frequently asked questions about Lake Weeks Middle
Where is Lake Weeks Middle?
- Lake Weeks Middle is a lake in Hillsborough County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Weeks Middle?
- Lake Weeks Middle in Hillsborough County, Florida has a water quality grade of D (Nutrient-rich). Phosphorus: 281 µg/L.
Is Lake Weeks Middle safe to swim in?
- Based on E. coli testing, Lake Weeks Middle never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 26 samples across 8 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Lake Weeks Middle has a water quality grade of D (Nutrient-rich). Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.
What is the water temperature of Lake Weeks Middle?
- Lake Weeks Middle typically sits around 86°F at the surface in August, from 43 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Lake Weeks Middle?
- Lake Weeks Middle has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Weeks (Lake Seffner) Public Boat Ramp. Public access is listed as yes.
Explore Lake Weeks Middle across LakeQuality
0.8 mi away · cable-pulled, no boat wake
Species activity outlook by water temperature and season
Where to stay at Florida's top lakes, each with its grade
Very high nutrients, dense algae, poor clarity
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Where this data comes from
21 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples21 samples · 2020–2025
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory