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Grantham weather
Current conditions and a 14-day forecast for Grantham, United States. Looking for typical seasonal weather instead? See the historical climate averages.
Now
25°C
Mainly clear · feels 24°C
Humidity
51%
relative humidity
Wind
27 km/h
10m wind speed
Chance of rain
71%
today
Next 24 hours in Grantham
| Time | Conditions | Temp | Rain chance |
|---|---|---|---|
| 1pm | Clear sky | 25°C | 0% |
| 2pm | Mainly clear | 25°C | 2% |
| 3pm | Clear sky | 26°C | 1% |
| 4pm | Clear sky | 25°C | 0% |
| 5pm | Clear sky | 25°C | 0% |
| 6pm | Clear sky | 24°C | 0% |
| 7pm | Clear sky | 22°C | 0% |
| 8pm | Clear sky | 21°C | 0% |
| 9pm | Clear sky | 20°C | 0% |
| 10pm | Clear sky | 19°C | 0% |
| 11pm | Clear sky | 18°C | 0% |
| 12am | Clear sky | 18°C | 0% |
| 1am | Clear sky | 17°C | 0% |
| 2am | Clear sky | 17°C | 0% |
| 3am | Clear sky | 17°C | 0% |
| 4am | Clear sky | 16°C | 0% |
| 5am | Clear sky | 16°C | 0% |
| 6am | Clear sky | 16°C | 0% |
| 7am | Clear sky | 18°C | 0% |
| 8am | Clear sky | 20°C | 0% |
| 9am | Clear sky | 21°C | 0% |
| 10am | Clear sky | 22°C | 0% |
| 11am | Clear sky | 23°C | 1% |
| 12pm | Clear sky | 24°C | 2% |
14-day forecast for Grantham
| Day | Conditions | High / Low | Rain chance |
|---|---|---|---|
| Today | Violent rain showers | 26° / 18° | 71% |
| Thu, Jul 16 | Overcast | 25° / 16° | 8% |
| Fri, Jul 17 | Mainly clear | 25° / 12° | 1% |
| Sat, Jul 18 | Light drizzle | 26° / 12° | 88% |
| Sun, Jul 19 | Violent rain showers | 23° / 12° | 88% |
| Mon, Jul 20 | Overcast | 26° / 10° | 6% |
| Tue, Jul 21 | Moderate drizzle | 21° / 14° | 47% |
| Wed, Jul 22 | Partly cloudy | 26° / 12° | 47% |
| Thu, Jul 23 | Mainly clear | 28° / 9° | 17% |
| Fri, Jul 24 | Overcast | 27° / 12° | 10% |
| Sat, Jul 25 | Slight rain showers | 23° / 14° | 17% |
| Sun, Jul 26 | Overcast | 16° / 9° | 45% |
| Mon, Jul 27 | Overcast | 24° / 7° | 34% |
| Tue, Jul 28 | Overcast | 26° / 8° | 26% |
Want more sun and moon detail for Grantham? Use the sun calculator or moon calculator and search for Grantham. For a live look at any other city, try the interactive weather tool.
Frequently asked questions
What's the weather like in Grantham today?
Current conditions and today's forecast for Grantham, United States are shown above, refreshed regularly through the day.
How accurate is a 14-day forecast?
A forecast is most reliable for the next 3-5 days. Beyond that, temperature and precipitation chances further out are a general trend rather than an exact prediction.
What is Grantham's weather usually like?
For long-term averages — typical monthly temperatures and rainfall based on years of historical data — see Grantham's climate page rather than this live forecast.