Please capitalize where necessary: morning temperatures will be around 16 c. during the day they will reach a maximum of 20 c. low temperatures at night will be around 13c. we have weak westerly winds.
A: Morning temperatures will be around 16 C. During the day they will reach a maximum of 20 C. Low temperatures at night will be around 13C. We have weak westerly winds.

Please capitalize where necessary: this product was added to our catalog on tuesday 24 august, 2010.
A: This product was added to our catalog on Tuesday 24 August, 2010.

Please capitalize where necessary: synccenter.dll program freezing and system crashing: important system components such as sxstrace.exe and synceng.dll become abnormal.
A: SyncCenter.dll program freezing and system crashing: Important system components such as sxstrace.exe and synceng.dll become abnormal.

Please capitalize where necessary: (the lisa forum 2000 will be held at the hyatt regency crystal city from march 8-10, 2000 in washington dc, usa)
A:
(The LISA Forum 2000 will be held at the Hyatt Regency Crystal City from March 8-10, 2000 in Washington DC, USA)