Lightweight Lawn Mowers That Brave the Elements
For most homeowners, the Greenworks 40V 16-Inch Cordless mower is the top pick. It weighs just 29.7 pounds, starts instantly, and its plastic deck sheds moisture. That combination makes it easy to handle on wet mornings. The main limitation is its 16-inch cutting width, which suits smaller lawns better.
Mowing damp grass is a fact of life if you live in a rainy climate. A weatherproof lightweight mower lets you tackle the job without wrestling a heavy machine through mud or worrying about rust.
We looked at specifications and owner feedback to find mowers that combine low weight with corrosion-resistant materials and sealed electrical components. The list includes battery, corded, and manual models to cover different yard sizes and budgets.
The best picks, ranked
Greenworks 40V 16-Inch Cordless Lawn Mower (25322)
This mower weighs just 29.7 pounds and folds flat for vertical storage. Its 40V battery delivers up to 40 minutes of runtime. The plastic deck resists moisture and never rusts. Owners report it handles damp grass well with the mulching plug installed.
Pros
- Very light and easy to push
- Folds for compact storage
- Starts with a button, no pull cord
Cons
- Narrow deck increases mowing time
- Not for thick, overgrown grass
EGO Power+ 21-Inch 56-Volt Cordless Lawn Mower (LM2102SP)
EGO’s self-propelled mower offers a 21-inch steel deck with a powder-coated finish that shrugs off moisture. It weighs about 67 pounds, but the rear-wheel drive makes it feel lighter. The 56V battery powers through wet grass without bogging down. Owners note the variable speed control is handy on hills.
Pros
- Self-propelled for easy pushing
- Long runtime (up to 60 minutes)
- Durable deck resists rust
Cons
- Heavier than others on this list
- Higher price point
RYOBI 13-Inch 40V Brushless Cordless Lawn Mower (RY40180)
Weighing only 25 pounds, this RYOBI is one of the lightest electric mowers available. Its compact design squeezes into narrow flower beds and under low shrubs. The brushless motor is sealed against moisture. Owners report the 13-inch deck is perfect for small yards, but it takes longer on larger lawns.
Pros
- Extremely lightweight
- Maneuvers in tight spots
- Brushless motor for longer life
Cons
- Small deck requires more passes
- Battery drains fast on thick grass
Sun Joe MJ401E-PRO 14-Inch 12-Amp Electric Lawn Mower
This corded mower never needs a battery charge, so you can mow all day if the cord reaches. It weighs 27.5 pounds and has a steel deck that’s painted to resist corrosion. The 12-amp motor is strong for its size. Owners appreciate the instant start and low maintenance, but the cord can be a hassle.
Pros
- No battery or charging worries
- Powerful motor for its size
- Lightweight and easy to push
Cons
- Limited by cord length
- Not self-propelled
American Lawn Mower Company 1215-14 14-Inch 12.5-Inch 5-Wheel Push Reel Lawn Mower
A manual reel mower is the ultimate weatherproof option because there are no electronics to short. This model weighs 34 pounds and has a 14-inch cutting width with five wheels for stability. The blades are carbon steel and can cut wet grass if it isn’t too tall. Owners enjoy the quiet, emission-free operation.
Pros
- No electricity or gas needed
- Quiet enough for early morning
- Sharpens easily for years of use
Cons
- Requires physical effort to push
- Not suitable for overgrown grass
WORX WG779 14-Inch 20V Cordless Lawn Mower
At just 22.8 pounds, the WORX is the lightest mower we found. It folds down to a compact size that fits in a car trunk. The 20V battery is shared with other WORX tools. Owners say it’s perfect for tiny lawns, but the battery life is short, so keep a spare on hand.
Pros
- Incredibly light and portable
- Folds for easy storage
- Simple push-button start
Cons
- Short runtime (around 20 minutes)
- Small wheels can struggle on rough ground
Husqvarna 7021P 21-Inch 160cc Gas Lawn Mower
For those who need maximum power and don’t mind more weight, this Husqvarna gas mower has a 21-inch steel deck with a high-wheel design. It weighs 67 pounds, but the 160cc engine powers through wet, heavy grass. The deck is coated to resist corrosion. Owners note it’s built to last, but requires more maintenance than electric models.
Pros
- Strong engine for tough conditions
- High rear wheels handle uneven ground
- Large cutting deck for big yards
Cons
- Heavier and harder to push
- Requires oil changes and fuel
How they stack up
| # | Model | Weight | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | Greenworks 40V 16-Inch Cordless Lawn Mower (25322) | 29.7 pounds | Small wet lawns that need quick dry storage | 9.4 | Check price |
| 2 | EGO Power+ 21-Inch 56-Volt Cordless Lawn Mower (LM2102SP) | 67 pounds | Large sloped yards with frequent rain | 9.2 | Check price |
| 3 | RYOBI 13-Inch 40V Brushless Cordless Lawn Mower (RY40180) | 25 pounds | Tight spaces and uneven terrain | 9.0 | Check price |
| 4 | Sun Joe MJ401E-PRO 14-Inch 12-Amp Electric Lawn Mower | 27.5 pounds | Budget-conscious small lawns near an outlet | 8.8 | Check price |
| 5 | American Lawn Mower Company 1215-14 14-Inch 12.5-Inch 5-Wheel Push Reel Lawn Mower | 34 pounds | Eco-friendly mowing in light dew | 8.6 | Check price |
| 6 | WORX WG779 14-Inch 20V Cordless Lawn Mower | 22.8 pounds | Apartment balconies and tiny patches | 8.4 | Check price |
| 7 | Husqvarna 7021P 21-Inch 160cc Gas Lawn Mower | 67 pounds | Large rugged lawns where weather is extreme | 8.2 | Check price |
How to choose
Frequently asked questions
Can I use a lightweight electric mower in light rain?
Yes, most electric mowers can handle light rain, but it’s not recommended. Water can damage electrical components if seals are compromised. If you must mow in damp conditions, choose a model with a high IP rating and dry it thoroughly afterward.
How do I store a lightweight mower to prevent rust?
Always clean the deck after mowing wet grass. Remove any clippings and rinse with water. Dry the mower completely before storing it in a shed or garage. For steel decks, apply a thin layer of oil or use a rust inhibitor.
What is the ideal weight for a lightweight mower?
Most ‘lightweight’ mowers weigh between 20 and 35 pounds. The exact ideal weight depends on your physical strength and the terrain. If you have a sloped yard, lighter is better. For flat yards, a few extra pounds won’t matter much.
Are plastic deck mowers as durable as steel?
Plastic decks are durable and won’t rust, but they can crack under heavy impact. Steel decks are stronger but require rust prevention. For most homeowners, a high-quality plastic deck is perfectly fine and helps keep the mower light.
How long do battery mowers last on a single charge?
Runtime varies by model and battery size. Typically, a 40V battery lasts 30 to 45 minutes, while a 56V battery can last up to 60 minutes. Cutting wet grass reduces runtime, so consider a spare battery if you have a large lawn.
Can I mow wet grass with a reel mower?
Reel mowers can cut wet grass if the grass isn’t too long or matted. The blades are sharp and scissor-like. However, wet clippings may clump and clog the reel, so you might need to rake afterward.
What safety precautions should I take when mowing in damp conditions?
Wear shoes with good traction to avoid slipping. Be cautious on slopes, as wet grass can be slippery. For electric mowers, use a ground fault circuit interrupter (GFCI) outlet to prevent electric shock. Never mow during thunderstorms.
Do lightweight mowers have enough power for thick grass?
Some lightweight models, especially those with brushless motors, can handle thick grass, but they may bog down if the grass is very tall or wet. For overgrown lawns, consider a gas mower or a higher-voltage electric model.
How do I choose between a self-propelled and a push mower?
Self-propelled mowers are easier on your arms and are great for large or sloped yards. Push mowers are lighter and cheaper, making them ideal for small, flat lawns. If you have physical limitations, self-propelled is the way to go.
What maintenance does a lightweight mower need?
Regular maintenance includes cleaning the deck after each use, checking and sharpening the blade, and inspecting the battery for corrosion. For gas mowers, change the oil and air filter as recommended. Store the mower in a dry place to prevent rust.
The bottom line
For most people, the Greenworks 40V 16-Inch is the best balance of light weight, weather resistance, and ease of use. Its plastic deck never rusts and the electric start makes it a breeze. If you have a large, hilly lawn, invest in the EGO self-propelled model for its power and durability. For tiny spaces or eco-friendly mowing, the manual reel mower is a reliable, weatherproof choice that requires no fuel or electricity.
