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Build a simple weather station with a rain gauge, wind vane, and thermometer, then record daily observations to explore and understand local weather patterns.
About this activity
Build a simple weather station with a rain gauge, wind vane, and thermometer, then record daily observations to explore and understand local weather patterns.
What you need
Step by step
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Step 1
Gather all the Materials Needed and bring them to a table or work area outside.
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Step 2
Use scissors to cut the top third off the clear plastic bottle so you have a bottom cup and a funnel-shaped top.
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Step 3
Push the cut top upside down into the bottle bottom so the neck becomes a funnel and the bottle can collect rain.
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Step 4
Drop the small stones into the bottom of the bottle to weigh it down so it will not tip over in wind.
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Step 5
Use the ruler and permanent marker to draw measurement lines on the bottle every 1 centimeter and write the numbers starting at 0 cm at the bottom.
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Step 6
Cut an arrow shape and a tail from the cardboard and tape the arrow and tail to opposite ends of the straw so it looks like a little airplane wing.
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Step 7
Push the pushpin through the middle of the straw and into the pencil eraser so the straw can spin freely on the eraser pivot.
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Step 8
Tape the pencil to the top of the stick or dowel so the straw is horizontal and can rotate like a wind vane while the stick stands upright.
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Step 9
Place the wind vane stick upright in an open spot outside where it can spin freely and will not hit trees or buildings.
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Step 10
Set the rain gauge bottle upright in an open spot at least 1 meter away from the wind vane and press it into the soil or weight it so it stands steady.
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Step 11
Attach or hang the thermometer in a shaded spot about 1 meter above the ground away from walls or heat sources.
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Step 12
In your notebook make a weather journal page with columns labeled Date; Rain cm; Temperature; Wind Direction; Notes.
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Step 13
Every day at the same time measure the rain height in the gauge using the ruler and write the measurement in the Rain cm column of your journal.
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Step 14
Every day at the same time read the thermometer and write the temperature in the Temperature column then look at which way the wind vane arrow is pointing and write that direction in the Wind Direction column.
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Step 15
Empty the rain gauge after you record the rainfall so it is ready for the next day and then share a photo and a short summary of your weather station and observations on DIY.org.
Fun facts
How do we build a simple weather station with a rain gauge, wind vane, and thermometer?
Start with a rain gauge: cut the top off a clear plastic bottle, invert the top as a funnel and tape it, then mark volume measurements on the side. For a wind vane, attach a cardboard arrow to a straw mounted on a pencil eraser so it spins freely on a pencil. For a DIY thermometer, use a clear bottle with colored water and a straw sealed with modeling clay so water rises with temperature. Record daily readings at the same time and note conditions.
What materials do I need to build a kid-friendly weather station at home?
Youâll need a clear plastic bottle, scissors or craft knife (adult use), tape, ruler and permanent marker for the rain gauge, cardboard, straw, pin or pencil and eraser for the wind vane, and a small clear bottle, water, food coloring, straw, and clay for a simple thermometer. Also have a notebook or printable chart, pencil, and a clipboard for daily observations. Optional: a basic outdoor thermometer, magnifier, and labels.
What ages is building a simple weather station suitable for?
This activity suits children roughly ages 6â12. Younger children (4â6) can join with close adult help for cutting and assembly and focus on observing and recording. Older kids (9â12+) can take leadership, measure more precisely, graph data, and explore patterns. Supervision is recommended for tool use and placing instruments outside. Adapt complexity to the childâs skill levelâsimpler assembly for little ones, more data logging and analysis for older children.
What are the benefits and safety tips for doing a home weather station project with kids?
Benefits include hands-on science learning, improved observation, data literacy, and weather awarenessâplus teamwork and routine-building. Safety tips: always supervise cutting and sharp tools, use plastic rather than glass, place instruments in safe shaded spots away from traffic, and secure mounts so they wonât blow away. Teach children to wait for adult help when necessary and to record measurements at consistent times to build reliable data for comparing weather patterns.
Watch & Learn
Need help?
What can we use if we don't have a clear plastic bottle, pushpin, or outdoor thermometer?
Use a clean glass jar or plastic jug for the rain gauge in place of the clear plastic bottle, substitute a thin nail or sewing needle with a small bead for the pushpin pivot through the straw, and hang a basic digital kitchen thermometer or temperature strip in the shaded spot instead of a specific outdoor thermometer.
My wind vane won't spin or the straw is stuckâwhat should I check or fix?
Check that the pushpin (or substitute needle) is centered through the middle of the straw and not pushed in too tightly into the pencil eraser, that the cardboard arrow and tail are taped to opposite ends of the straw and balanced, and that the pencil is taped to the stick so the straw sits horizontal and can rotate freely as described in the instructions.
How can I adapt this activity for younger children or older kids who want more challenge?
For younger children have an adult pre-cut the bottle top, pre-poke the pivot, and let them decorate and make simple 'wet/dry' journal entries, while older kids can mark the bottle every 0.5 cm, add a compass for exact wind direction, or log measurements digitally for more precise data collection following the same steps.
What are some ways to extend, improve, or personalize our weather station after finishing the basic setup?
Personalize and weatherproof the rain gauge and wind vane with permanent marker or clear tape, add a second rain bottle to compare two locations, calibrate your centimeter marks using a measuring cup for accuracy, or count wind vane rotations per minute to estimate wind speed and record everything in the notebook before sharing on DIY.org.