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HomeOutdoors & GardenWeatherproof Lightweight String Trimmers That Handle Rain and Dew
Outdoors & Garden

Weatherproof Lightweight String Trimmers That Handle Rain and Dew

Last checked Sep 2026 7 products compared Specs + aggregated owner reviews No paid placement
How we research & rank: We do not accept payment for placement and we do not test in a lab. Rankings are built from published specifications, safety and industry standards, and aggregated real-owner reviews. Read our full method ›
Bottom line

The WORX WG163 is the top pick for most homeowners. It is lightweight at 7.5 pounds and has an IPX4 rating, so it shrugs off rain and wet grass. Its 20-volt power handles small to medium yards. The main limitation is runtime, which may not finish large properties on a single charge.

Trimming wet grass after a rain shower can be a challenge if your trimmer lacks weatherproofing. Many standard models sputter or short out when moisture seeps into the motor or battery compartment. A weatherproof lightweight string trimmer solves that problem, letting you work through damp conditions without worry.

These trimmers are also easier on your arms and back. We compared seven models that combine weather resistance with a manageable weight. Each one has its own strengths, so you can choose the right tool for your yard.

What we compared: We compared seven weatherproof lightweight string trimmers based on weight, water resistance rating, power source, cutting width, and user feedback. Models ranged from corded electric to battery powered. We prioritized units that advertise moisture resistance and have a reputation for starting reliably in damp conditions. We do not test in a lab; rankings come from published specifications and aggregated owner reviews.

What to look for

Our top picks

1Best overall for wet conditionsTop Pick
WORX WG163 20V Cordless String Trimmer

WORX WG163 20V Cordless String Trimmer

9.4Our scoreout of 10

The WORX WG163 is a lightweight 20-volt trimmer with an IPX4 water resistance rating. It handles light rain and wet grass without issues. The adjustable telescoping shaft fits different user heights. Owners report it starts reliably even after being left in damp sheds.

Power Source: 20V batteryWater Resistance: IPX4Weight: 7.5 lbsCutting Width: 12 inches
Pros
  • IPX4 rating means it survives splashes and rain
  • Adjustable shaft adds comfort
  • Battery and charger included
Cons
  • Runtime may be short for large yards
  • Some users find the trigger awkward
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2Budget-friendly battery optionBest Value
BLACK+DECKER LSTE525 20V MAX String Trimmer

BLACK+DECKER LSTE525 20V MAX String Trimmer

8.8Our scoreout of 10

This 20V MAX trimmer is affordable and weather resistant. It has a push button feed for easy line advancement. The lightweight design reduces fatigue. It is not fully waterproof but handles damp grass well.

Power Source: 20V MAX batteryWater Resistance: Weather resistantWeight: 5.5 lbsCutting Width: 13 inches
Pros
  • Very lightweight
  • Affordable price point
  • Easy line feed
Cons
  • Battery not interchangeable with some other B+D tools
  • Not rated for heavy rain

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3Professional-grade durabilityPremium Pick
DEWALT DCST970X1 20V MAX XR Brushless String Trimmer

DEWALT DCST970X1 20V MAX XR Brushless String Trimmer

9.1Our scoreout of 10

The DEWALT DCST970X1 is a brushless trimmer with a weather resistant design. It delivers high power and long runtime. The variable speed trigger helps with battery efficiency. It is heavier but still manageable.

Power Source: 20V MAX XR batteryWater Resistance: IPX4Weight: 8.9 lbsCutting Width: 15 inches
Pros
  • Brushless motor for longer life
  • High cutting power
  • Accepts flexvolt batteries
Cons
  • Heavier than other models
  • Higher cost

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4Long runtime for big yardsLong Runtime
Ryobi RY40210 40V HP Brushless String Trimmer

Ryobi RY40210 40V HP Brushless String Trimmer

9.0Our scoreout of 10

This 40V trimmer from Ryobi is weather resistant and offers excellent runtime. It comes with a 4Ah battery. The brushless motor provides consistent power. It is heavier but balances well.

Power Source: 40V batteryWater Resistance: IPX4Weight: 9.5 lbsCutting Width: 16 inches
Pros
  • 40V power for thicker weeds
  • Long runtime
  • Brushless motor
Cons
  • Battery and charger sold separately? Actually included
  • Heavier than average

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5Lightweight and affordableLightweight Choice
Greenworks 21262 40V Cordless String Trimmer

Greenworks 21262 40V Cordless String Trimmer

8.7Our scoreout of 10

The Greenworks 21262 is a 40V trimmer that weighs only 6.2 pounds. It has a weather resistant housing. The automatic feed spool is convenient. It is not as rugged as premium models.

Power Source: 40V batteryWater Resistance: Weather resistantWeight: 6.2 lbsCutting Width: 16 inches
Pros
  • Lightweight for a 40V model
  • Auto feed spool
  • Good value
Cons
  • Battery may not last long under heavy use
  • Some plastic parts feel flimsy

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6Best overall performanceTop Performance
EGO Power+ ST1500SF 15-Inch String Trimmer

EGO Power+ ST1500SF 15-Inch String Trimmer

9.2Our scoreout of 10

The EGO Power+ ST1500SF is a weather resistant trimmer with a 15-inch cutting path. It is part of the EGO 56V system, offering high power and runtime. It is heavier but powerful.

Power Source: 56V batteryWater Resistance: IPX4Weight: 9.9 lbsCutting Width: 15 inches
Pros
  • Powerful 56V motor
  • Excellent build quality
  • Compatible with EGO system
Cons
  • Requires separate battery purchase
  • Expensive

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7Compact and easy to storeCompact Design
Craftsman V20 20V Cordless String Trimmer

Craftsman V20 20V Cordless String Trimmer

8.4Our scoreout of 10

This Craftsman V20 trimmer is compact and weather resistant. It features a pivoting head for edging. It is lightweight and easy to maneuver. Battery life is adequate for small yards.

Power Source: 20V batteryWater Resistance: Weather resistantWeight: 5.9 lbsCutting Width: 12 inches
Pros
  • Pivoting head for edging
  • Lightweight
  • Easy to store
Cons
  • Shorter runtime
  • Not for thick vegetation

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Compared at a glance

# Model Power Source Best for Score Price
1 WORX WG163 20V Cordless String Trimmer 20V battery Best overall for wet conditions 9.4 Check price
2 BLACK+DECKER LSTE525 20V MAX String Trimmer 20V MAX battery Budget-friendly battery option 8.8 Check price
3 DEWALT DCST970X1 20V MAX XR Brushless String Trimmer 20V MAX XR battery Professional-grade durability 9.1 Check price
4 Ryobi RY40210 40V HP Brushless String Trimmer 40V battery Long runtime for big yards 9.0 Check price
5 Greenworks 21262 40V Cordless String Trimmer 40V battery Lightweight and affordable 8.7 Check price
6 EGO Power+ ST1500SF 15-Inch String Trimmer 56V battery Best overall performance 9.2 Check price
7 Craftsman V20 20V Cordless String Trimmer 20V battery Compact and easy to store 8.4 Check price

Frequently asked questions

Can I use a weatherproof string trimmer in heavy rain?

Most weatherproof trimmers are rated IPX4, which protects against splashing water but not continuous heavy rain. It is best to avoid using them in downpours to prevent damage.

Are battery-powered trimmers safe in wet grass?

Yes, if they have a weather resistance rating. They are safer than corded models because there is no risk of cutting the cord. Always follow the manufacturer’s guidelines.

What is the difference between IPX4 and waterproof?

IPX4 means protection from splashing water. Waterproof typically means the device can be submerged. String trimmers are usually IPX4, not fully waterproof.

How do I know if a trimmer is lightweight?

Lightweight trimmers weigh less than 7 pounds. Some models weigh as little as 5 pounds. Check the product specifications for the exact weight.

What is the best cutting width for a small yard?

A cutting width of 12 to 14 inches is sufficient for small yards. Wider widths cover more ground but may be heavier.

Do all weatherproof trimmers have brushless motors?

Not all. Brushless motors are more efficient and durable, but they cost more. Some budget models use brushed motors.

Can I use a trimmer with a wet battery?

No, never use a wet battery. Always dry the battery and the compartment before inserting. Moisture can cause short circuits.

Are there corded weatherproof trimmers?

Yes, but they are less common. Corded trimmers are lighter but have limitations. Battery models are more popular for wet conditions.

Final word

After comparing these models, the WORX WG163 is the best buy for most people. It offers a good balance of weight, weather resistance, and price. For larger yards or heavy use, the EGO Power+ ST1500SF is worth the extra cost, but remember to buy a battery separately.

RB

The Reviewsblaster Editorial Team

Research, Reviews & Fact-Checking

Our editorial team researches products by comparing published specifications, safety and industry standards, and aggregated owner reviews. We do not physically test products in a lab, and there are no paid placements in our guides.

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