Lethem weather live forecast

Today's maximum temperature in Lethem is expected to be 90°F. Select a day from the live weather forecast for Lethem, Guyana for more weather parameters.

5-day weather forecast updated at 04:01 on Tuesday 7th October 2025 GMT

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The 5-day weather forecast for Guyana (Lethem) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lethem weather forecast by day

Below are the detailed weather forecasts for Lethem for the next 5 days.

Lethem weather for Tuesday 7th October 2025

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 20-30 mm of rainfall expected with 45% chance of some rain and a light breeze of 4 mph from the north-east.

  • 90°F maximum temperature90
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 45% chance of some rain45
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 4 mph from the North-East4
    mph wind from NE

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Lethem weather for Wednesday 8th October 2025

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a light breeze of 7 mph from the north-east.

  • 90°F maximum temperature90
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 71% chance of some rain71
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 7 mph from the North-East7
    mph wind from NE

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Lethem weather for Thursday 9th October 2025

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 90°F, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 60% chance of some rain and a gentle breeze of 9 mph from the north-east.

  • 90°F maximum temperature90
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 60% chance of some rain60
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 9 mph from the North-East9
    mph wind from NE

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Lethem weather for Friday 10th October 2025

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 91°F, high levels of heat & humidity, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 59% chance of some rain and a light breeze of 5 mph from the north-east.

  • 91°F maximum temperature91
    °F maximum temperature
  • 75°F minimum temperature75
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 59% chance of some rain59
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 5 mph from the North-East5
    mph wind from NE

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Lethem weather for Saturday 11th October 2025

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 93°F, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a light breeze of 7 mph from the north-east.

  • 93°F maximum temperature93
    °F maximum temperature
  • 77°F minimum temperature77
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 58% chance of some rain58
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 7 mph from the North-East7
    mph wind from NE

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