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Live forecasts update automatically; written guidance last reviewed 13 June 2026 by the Insight Britain weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Harlow, in west Essex, experiences a temperate maritime climate typical of southern England. The live forecast above gives the current conditions and a seven-day outlook for the town. Use this guide to understand what those figures mean for your day-to-day plans.
How should I read the live forecast above for Harlow?
The live forecast shows temperature, wind speed and direction, humidity, and precipitation probability. For Harlow, pay particular attention to the wind arrow: the town lies in a relatively sheltered inland valley, but north-easterlies can feel raw in winter. The precipitation percentage tells you the chance of rain at any given hour, not the amount.
What is Harlow’s climate like through the seasons?
Harlow shares the UK’s classic maritime pattern: mild winters and cool summers, with rain spread fairly evenly across the year.
Spring (March–May) is changeable. Daytime highs typically range from 10°C to 16°C, with occasional frost in March. Rainfall is moderate, and winds are often light to moderate from the south-west.
Summer (June–August) brings the warmest weather, with highs commonly between 19°C and 24°C, though heatwaves can push temperatures higher. Thunderstorms occasionally break the settled spells. Humidity is lower than in coastal areas.
Autumn (September–November) sees temperatures falling from around 18°C to 8°C. Fog can form in the valley early in the day. Rainfall increases through October and November.
Winter (December–February) is chilly but not severe: daytime highs average 5°C to 9°C, with night frosts common. Snowfall is infrequent and usually light, but a cold easterly wind can make it feel colder.
How does Harlow’s geography affect its weather?
Harlow sits in the valley of the River Stort, part of the Lea Valley. This low-lying position means it is more prone to morning fog and frost than higher ground nearby. The Chilterns to the west and the North Downs to the south have little influence, so the town does not experience the heavy rain shadows or wind tunnels seen in more upland areas.
When is the best time to visit Harlow, and what should I pack?
Late spring (May) and early autumn (September) offer the most reliable weather for exploring the town’s parks and the nearby Lee Valley Park. Pack layers: a waterproof jacket is useful year-round, and a light jumper for cooler summer evenings. In winter, bring a warm coat, hat, and gloves for frosty mornings.
What other local areas do readers check?
People looking at Harlow weather often check forecasts for nearby towns. See the Broxbourne weather guide, Ware weather guide, Bishop’s Stortford weather guide, Hertford weather guide, and Chingford weather guide for comparison.
What will the weather be in Harlow tomorrow?
Check the live forecast above for tomorrow’s high, low, and chance of rain. Typically, Harlow follows the regional pattern: if the pressure is rising, expect drier conditions; if falling, rain is likely.
How reliable is the 10–14 day outlook for Harlow?
Medium-range forecasts are useful for trends but less accurate for specific hour-by-hour details. Look for broad changes in temperature and pressure patterns. For the most reliable view, check our 10‑day UK forecast page.
Does it rain a lot in Harlow?
Harlow receives around 600–650 mm of rain per year, making it drier than the UK average (about 850 mm). Rain is spread across all months, but heavy downpours are uncommon. See UK weather hub for regional comparisons.
Are there any weather warnings for Harlow?
For severe weather alerts, visit our UK weather warnings page. Harlow is rarely affected by extreme events, but heavy rain or strong winds can prompt yellow warnings.